Home / 10,065.28-15,073.08-5,127.88

Finding the Fourth Proportional to 10,065.28, 15,073.08 and 5,127.88

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Solution

The fourth proportional to 10,065.28, 15,073.08 and 5,127.88 is: 7,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065.28 : 15,073.08 = 5,127.88 : x
  2. Step 2: Convert to fraction form
    10,065.28/15,073.08 = 5,127.88/x
  3. Step 3: Cross multiply
    10,065.28x = 15,073.08 × 5,127.88
  4. Step 4: Simplify right side
    10,065.28x = 77,292,945.47
  5. Step 5: Solve for x
    x = 77,292,945.47/10,065.28
  6. Step 6: Final answer
    x = 7,679.16

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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.