Home / 12,472.38-18,711.65-3,707.25

Finding the Fourth Proportional to 12,472.38, 18,711.65 and 3,707.25

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Solution

The fourth proportional to 12,472.38, 18,711.65 and 3,707.25 is: 5,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.38 : 18,711.65 = 3,707.25 : x
  2. Step 2: Convert to fraction form
    12,472.38/18,711.65 = 3,707.25/x
  3. Step 3: Cross multiply
    12,472.38x = 18,711.65 × 3,707.25
  4. Step 4: Simplify right side
    12,472.38x = 69,368,764.46
  5. Step 5: Solve for x
    x = 69,368,764.46/12,472.38
  6. Step 6: Final answer
    x = 5,561.79

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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.