Home / 10,691.28-15,930.36-9,527.40

Finding the Fourth Proportional to 10,691.28, 15,930.36 and 9,527.40

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Solution

The fourth proportional to 10,691.28, 15,930.36 and 9,527.40 is: 14,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.28 : 15,930.36 = 9,527.40 : x
  2. Step 2: Convert to fraction form
    10,691.28/15,930.36 = 9,527.40/x
  3. Step 3: Cross multiply
    10,691.28x = 15,930.36 × 9,527.40
  4. Step 4: Simplify right side
    10,691.28x = 151,774,911.86
  5. Step 5: Solve for x
    x = 151,774,911.86/10,691.28
  6. Step 6: Final answer
    x = 14,196.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.