Home / 9,440.88-13,037.85-7,778.76

Finding the Fourth Proportional to 9,440.88, 13,037.85 and 7,778.76

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Solution

The fourth proportional to 9,440.88, 13,037.85 and 7,778.76 is: 10,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,440.88 : 13,037.85 = 7,778.76 : x
  2. Step 2: Convert to fraction form
    9,440.88/13,037.85 = 7,778.76/x
  3. Step 3: Cross multiply
    9,440.88x = 13,037.85 × 7,778.76
  4. Step 4: Simplify right side
    9,440.88x = 101,418,306.07
  5. Step 5: Solve for x
    x = 101,418,306.07/9,440.88
  6. Step 6: Final answer
    x = 10,742.46

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Find fourth proportional to 4,720.44, 6,518.93 and 3,889.38
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.