Home / 12,901.92-19,327.20-10,115.52

Finding the Fourth Proportional to 12,901.92, 19,327.20 and 10,115.52

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Solution

The fourth proportional to 12,901.92, 19,327.20 and 10,115.52 is: 15,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.92 : 19,327.20 = 10,115.52 : x
  2. Step 2: Convert to fraction form
    12,901.92/19,327.20 = 10,115.52/x
  3. Step 3: Cross multiply
    12,901.92x = 19,327.20 × 10,115.52
  4. Step 4: Simplify right side
    12,901.92x = 195,504,678.14
  5. Step 5: Solve for x
    x = 195,504,678.14/12,901.92
  6. Step 6: Final answer
    x = 15,153.15

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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.