Home / 10,177.20-15,247.86-8,913.70

Finding the Fourth Proportional to 10,177.20, 15,247.86 and 8,913.70

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Solution

The fourth proportional to 10,177.20, 15,247.86 and 8,913.70 is: 13,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.20 : 15,247.86 = 8,913.70 : x
  2. Step 2: Convert to fraction form
    10,177.20/15,247.86 = 8,913.70/x
  3. Step 3: Cross multiply
    10,177.20x = 15,247.86 × 8,913.70
  4. Step 4: Simplify right side
    10,177.20x = 135,914,849.68
  5. Step 5: Solve for x
    x = 135,914,849.68/10,177.20
  6. Step 6: Final answer
    x = 13,354.84

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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.