Home / 10,129.38-15,193.99-2,734.58

Finding the Fourth Proportional to 10,129.38, 15,193.99 and 2,734.58

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Solution

The fourth proportional to 10,129.38, 15,193.99 and 2,734.58 is: 4,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.38 : 15,193.99 = 2,734.58 : x
  2. Step 2: Convert to fraction form
    10,129.38/15,193.99 = 2,734.58/x
  3. Step 3: Cross multiply
    10,129.38x = 15,193.99 × 2,734.58
  4. Step 4: Simplify right side
    10,129.38x = 41,549,181.17
  5. Step 5: Solve for x
    x = 41,549,181.17/10,129.38
  6. Step 6: Final answer
    x = 4,101.85

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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.