Home / 10,101.20-15,146.40-4,251.20

Finding the Fourth Proportional to 10,101.20, 15,146.40 and 4,251.20

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Solution

The fourth proportional to 10,101.20, 15,146.40 and 4,251.20 is: 6,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.20 : 15,146.40 = 4,251.20 : x
  2. Step 2: Convert to fraction form
    10,101.20/15,146.40 = 4,251.20/x
  3. Step 3: Cross multiply
    10,101.20x = 15,146.40 × 4,251.20
  4. Step 4: Simplify right side
    10,101.20x = 64,390,375.68
  5. Step 5: Solve for x
    x = 64,390,375.68/10,101.20
  6. Step 6: Final answer
    x = 6,374.53

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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.