Home / 10,429.07-15,645.31-3,407.04

Finding the Fourth Proportional to 10,429.07, 15,645.31 and 3,407.04

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Solution

The fourth proportional to 10,429.07, 15,645.31 and 3,407.04 is: 5,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.07 : 15,645.31 = 3,407.04 : x
  2. Step 2: Convert to fraction form
    10,429.07/15,645.31 = 3,407.04/x
  3. Step 3: Cross multiply
    10,429.07x = 15,645.31 × 3,407.04
  4. Step 4: Simplify right side
    10,429.07x = 53,304,179.95
  5. Step 5: Solve for x
    x = 53,304,179.95/10,429.07
  6. Step 6: Final answer
    x = 5,111.12

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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.