Home / 10,406.80-14,361.24-5,691.04

Finding the Fourth Proportional to 10,406.80, 14,361.24 and 5,691.04

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Solution

The fourth proportional to 10,406.80, 14,361.24 and 5,691.04 is: 7,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.80 : 14,361.24 = 5,691.04 : x
  2. Step 2: Convert to fraction form
    10,406.80/14,361.24 = 5,691.04/x
  3. Step 3: Cross multiply
    10,406.80x = 14,361.24 × 5,691.04
  4. Step 4: Simplify right side
    10,406.80x = 81,730,391.29
  5. Step 5: Solve for x
    x = 81,730,391.29/10,406.80
  6. Step 6: Final answer
    x = 7,853.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.