Home / 10,129.05-15,220.31-5,452.52

Finding the Fourth Proportional to 10,129.05, 15,220.31 and 5,452.52

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Solution

The fourth proportional to 10,129.05, 15,220.31 and 5,452.52 is: 8,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.05 : 15,220.31 = 5,452.52 : x
  2. Step 2: Convert to fraction form
    10,129.05/15,220.31 = 5,452.52/x
  3. Step 3: Cross multiply
    10,129.05x = 15,220.31 × 5,452.52
  4. Step 4: Simplify right side
    10,129.05x = 82,988,941.32
  5. Step 5: Solve for x
    x = 82,988,941.32/10,129.05
  6. Step 6: Final answer
    x = 8,193.16

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1.5x scale

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.