Home / 7,780.24-11,670.36-3,166.48

Finding the Fourth Proportional to 7,780.24, 11,670.36 and 3,166.48

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Solution

The fourth proportional to 7,780.24, 11,670.36 and 3,166.48 is: 4,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.24 : 11,670.36 = 3,166.48 : x
  2. Step 2: Convert to fraction form
    7,780.24/11,670.36 = 3,166.48/x
  3. Step 3: Cross multiply
    7,780.24x = 11,670.36 × 3,166.48
  4. Step 4: Simplify right side
    7,780.24x = 36,953,961.53
  5. Step 5: Solve for x
    x = 36,953,961.53/7,780.24
  6. Step 6: Final answer
    x = 4,749.72

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.