Home / 10,351.09-15,531.45-4,429.79

Finding the Fourth Proportional to 10,351.09, 15,531.45 and 4,429.79

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Solution

The fourth proportional to 10,351.09, 15,531.45 and 4,429.79 is: 6,646.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,351.09 : 15,531.45 = 4,429.79 : x
  2. Step 2: Convert to fraction form
    10,351.09/15,531.45 = 4,429.79/x
  3. Step 3: Cross multiply
    10,351.09x = 15,531.45 × 4,429.79
  4. Step 4: Simplify right side
    10,351.09x = 68,801,061.90
  5. Step 5: Solve for x
    x = 68,801,061.90/10,351.09
  6. Step 6: Final answer
    x = 6,646.75

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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.