Home / 10,901.52-15,044.49-6,429.12

Finding the Fourth Proportional to 10,901.52, 15,044.49 and 6,429.12

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Solution

The fourth proportional to 10,901.52, 15,044.49 and 6,429.12 is: 8,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.52 : 15,044.49 = 6,429.12 : x
  2. Step 2: Convert to fraction form
    10,901.52/15,044.49 = 6,429.12/x
  3. Step 3: Cross multiply
    10,901.52x = 15,044.49 × 6,429.12
  4. Step 4: Simplify right side
    10,901.52x = 96,722,831.55
  5. Step 5: Solve for x
    x = 96,722,831.55/10,901.52
  6. Step 6: Final answer
    x = 8,872.42

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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.