Home / 12,909.92-19,339.20-10,123.52

Finding the Fourth Proportional to 12,909.92, 19,339.20 and 10,123.52

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Solution

The fourth proportional to 12,909.92, 19,339.20 and 10,123.52 is: 15,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.92 : 19,339.20 = 10,123.52 : x
  2. Step 2: Convert to fraction form
    12,909.92/19,339.20 = 10,123.52/x
  3. Step 3: Cross multiply
    12,909.92x = 19,339.20 × 10,123.52
  4. Step 4: Simplify right side
    12,909.92x = 195,780,777.98
  5. Step 5: Solve for x
    x = 195,780,777.98/12,909.92
  6. Step 6: Final answer
    x = 15,165.14

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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.