Home / 9,139.18-13,708.77-5,235.25

Finding the Fourth Proportional to 9,139.18, 13,708.77 and 5,235.25

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Solution

The fourth proportional to 9,139.18, 13,708.77 and 5,235.25 is: 7,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.18 : 13,708.77 = 5,235.25 : x
  2. Step 2: Convert to fraction form
    9,139.18/13,708.77 = 5,235.25/x
  3. Step 3: Cross multiply
    9,139.18x = 13,708.77 × 5,235.25
  4. Step 4: Simplify right side
    9,139.18x = 71,768,838.14
  5. Step 5: Solve for x
    x = 71,768,838.14/9,139.18
  6. Step 6: Final answer
    x = 7,852.88

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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.