Home / 15,108.95-22,679.82-11,147.78

Finding the Fourth Proportional to 15,108.95, 22,679.82 and 11,147.78

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Solution

The fourth proportional to 15,108.95, 22,679.82 and 11,147.78 is: 16,733.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.95 : 22,679.82 = 11,147.78 : x
  2. Step 2: Convert to fraction form
    15,108.95/22,679.82 = 11,147.78/x
  3. Step 3: Cross multiply
    15,108.95x = 22,679.82 × 11,147.78
  4. Step 4: Simplify right side
    15,108.95x = 252,829,530.40
  5. Step 5: Solve for x
    x = 252,829,530.40/15,108.95
  6. Step 6: Final answer
    x = 16,733.76

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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.