Home / 10,211.44-15,306.24-5,279.76

Finding the Fourth Proportional to 10,211.44, 15,306.24 and 5,279.76

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Solution

The fourth proportional to 10,211.44, 15,306.24 and 5,279.76 is: 7,913.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.44 : 15,306.24 = 5,279.76 : x
  2. Step 2: Convert to fraction form
    10,211.44/15,306.24 = 5,279.76/x
  3. Step 3: Cross multiply
    10,211.44x = 15,306.24 × 5,279.76
  4. Step 4: Simplify right side
    10,211.44x = 80,813,273.70
  5. Step 5: Solve for x
    x = 80,813,273.70/10,211.44
  6. Step 6: Final answer
    x = 7,913.99

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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.