Home / 10,948.12-15,105.14-6,472.28

Finding the Fourth Proportional to 10,948.12, 15,105.14 and 6,472.28

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Solution

The fourth proportional to 10,948.12, 15,105.14 and 6,472.28 is: 8,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.12 : 15,105.14 = 6,472.28 : x
  2. Step 2: Convert to fraction form
    10,948.12/15,105.14 = 6,472.28/x
  3. Step 3: Cross multiply
    10,948.12x = 15,105.14 × 6,472.28
  4. Step 4: Simplify right side
    10,948.12x = 97,764,695.52
  5. Step 5: Solve for x
    x = 97,764,695.52/10,948.12
  6. Step 6: Final answer
    x = 8,929.82

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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.