Home / 10,221.10-15,310.05-8,277.10

Finding the Fourth Proportional to 10,221.10, 15,310.05 and 8,277.10

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Solution

The fourth proportional to 10,221.10, 15,310.05 and 8,277.10 is: 12,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.10 : 15,310.05 = 8,277.10 : x
  2. Step 2: Convert to fraction form
    10,221.10/15,310.05 = 8,277.10/x
  3. Step 3: Cross multiply
    10,221.10x = 15,310.05 × 8,277.10
  4. Step 4: Simplify right side
    10,221.10x = 126,722,814.86
  5. Step 5: Solve for x
    x = 126,722,814.86/10,221.10
  6. Step 6: Final answer
    x = 12,398.16

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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.