Home / 10,098.90-15,151.43-5,172.02

Finding the Fourth Proportional to 10,098.90, 15,151.43 and 5,172.02

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Solution

The fourth proportional to 10,098.90, 15,151.43 and 5,172.02 is: 7,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,098.90 : 15,151.43 = 5,172.02 : x
  2. Step 2: Convert to fraction form
    10,098.90/15,151.43 = 5,172.02/x
  3. Step 3: Cross multiply
    10,098.90x = 15,151.43 × 5,172.02
  4. Step 4: Simplify right side
    10,098.90x = 78,363,498.99
  5. Step 5: Solve for x
    x = 78,363,498.99/10,098.90
  6. Step 6: Final answer
    x = 7,759.61

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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.