Home / 12,472.29-18,705.23-3,705.17

Finding the Fourth Proportional to 12,472.29, 18,705.23 and 3,705.17

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Solution

The fourth proportional to 12,472.29, 18,705.23 and 3,705.17 is: 5,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.29 : 18,705.23 = 3,705.17 : x
  2. Step 2: Convert to fraction form
    12,472.29/18,705.23 = 3,705.17/x
  3. Step 3: Cross multiply
    12,472.29x = 18,705.23 × 3,705.17
  4. Step 4: Simplify right side
    12,472.29x = 69,306,057.04
  5. Step 5: Solve for x
    x = 69,306,057.04/12,472.29
  6. Step 6: Final answer
    x = 5,556.80

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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.