Home / 12,471.38-18,710.15-3,706.25

Finding the Fourth Proportional to 12,471.38, 18,710.15 and 3,706.25

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Solution

The fourth proportional to 12,471.38, 18,710.15 and 3,706.25 is: 5,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.38 : 18,710.15 = 3,706.25 : x
  2. Step 2: Convert to fraction form
    12,471.38/18,710.15 = 3,706.25/x
  3. Step 3: Cross multiply
    12,471.38x = 18,710.15 × 3,706.25
  4. Step 4: Simplify right side
    12,471.38x = 69,344,521.68
  5. Step 5: Solve for x
    x = 69,344,521.68/12,471.38
  6. Step 6: Final answer
    x = 5,560.29

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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.