Home / 12,572.11-18,861.68-3,807.10

Finding the Fourth Proportional to 12,572.11, 18,861.68 and 3,807.10

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Solution

The fourth proportional to 12,572.11, 18,861.68 and 3,807.10 is: 5,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.11 : 18,861.68 = 3,807.10 : x
  2. Step 2: Convert to fraction form
    12,572.11/18,861.68 = 3,807.10/x
  3. Step 3: Cross multiply
    12,572.11x = 18,861.68 × 3,807.10
  4. Step 4: Simplify right side
    12,572.11x = 71,808,301.93
  5. Step 5: Solve for x
    x = 71,808,301.93/12,572.11
  6. Step 6: Final answer
    x = 5,711.71

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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.