Home / 13,931.72-20,882.90-4,569.30

Finding the Fourth Proportional to 13,931.72, 20,882.90 and 4,569.30

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Solution

The fourth proportional to 13,931.72, 20,882.90 and 4,569.30 is: 6,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.72 : 20,882.90 = 4,569.30 : x
  2. Step 2: Convert to fraction form
    13,931.72/20,882.90 = 4,569.30/x
  3. Step 3: Cross multiply
    13,931.72x = 20,882.90 × 4,569.30
  4. Step 4: Simplify right side
    13,931.72x = 95,420,234.97
  5. Step 5: Solve for x
    x = 95,420,234.97/13,931.72
  6. Step 6: Final answer
    x = 6,849.14

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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.