Home / 10,097.90-15,149.26-3,172.40

Finding the Fourth Proportional to 10,097.90, 15,149.26 and 3,172.40

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Solution

The fourth proportional to 10,097.90, 15,149.26 and 3,172.40 is: 4,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,097.90 : 15,149.26 = 3,172.40 : x
  2. Step 2: Convert to fraction form
    10,097.90/15,149.26 = 3,172.40/x
  3. Step 3: Cross multiply
    10,097.90x = 15,149.26 × 3,172.40
  4. Step 4: Simplify right side
    10,097.90x = 48,059,512.42
  5. Step 5: Solve for x
    x = 48,059,512.42/10,097.90
  6. Step 6: Final answer
    x = 4,759.36

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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.