Home / 10,329.78-15,456.38-6,172.06

Finding the Fourth Proportional to 10,329.78, 15,456.38 and 6,172.06

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Solution

The fourth proportional to 10,329.78, 15,456.38 and 6,172.06 is: 9,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.78 : 15,456.38 = 6,172.06 : x
  2. Step 2: Convert to fraction form
    10,329.78/15,456.38 = 6,172.06/x
  3. Step 3: Cross multiply
    10,329.78x = 15,456.38 × 6,172.06
  4. Step 4: Simplify right side
    10,329.78x = 95,397,704.74
  5. Step 5: Solve for x
    x = 95,397,704.74/10,329.78
  6. Step 6: Final answer
    x = 9,235.21

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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.