Home / 9,265.08-12,785.68-5,286.28

Finding the Fourth Proportional to 9,265.08, 12,785.68 and 5,286.28

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Solution

The fourth proportional to 9,265.08, 12,785.68 and 5,286.28 is: 7,294.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.08 : 12,785.68 = 5,286.28 : x
  2. Step 2: Convert to fraction form
    9,265.08/12,785.68 = 5,286.28/x
  3. Step 3: Cross multiply
    9,265.08x = 12,785.68 × 5,286.28
  4. Step 4: Simplify right side
    9,265.08x = 67,588,684.47
  5. Step 5: Solve for x
    x = 67,588,684.47/9,265.08
  6. Step 6: Final answer
    x = 7,294.99

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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.