Home / 12,911.92-19,342.20-10,125.52

Finding the Fourth Proportional to 12,911.92, 19,342.20 and 10,125.52

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Solution

The fourth proportional to 12,911.92, 19,342.20 and 10,125.52 is: 15,168.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.92 : 19,342.20 = 10,125.52 : x
  2. Step 2: Convert to fraction form
    12,911.92/19,342.20 = 10,125.52/x
  3. Step 3: Cross multiply
    12,911.92x = 19,342.20 × 10,125.52
  4. Step 4: Simplify right side
    12,911.92x = 195,849,832.94
  5. Step 5: Solve for x
    x = 195,849,832.94/12,911.92
  6. Step 6: Final answer
    x = 15,168.14

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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.