Home / 15,016.20-22,493.55-8,428.55

Finding the Fourth Proportional to 15,016.20, 22,493.55 and 8,428.55

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Solution

The fourth proportional to 15,016.20, 22,493.55 and 8,428.55 is: 12,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.20 : 22,493.55 = 8,428.55 : x
  2. Step 2: Convert to fraction form
    15,016.20/22,493.55 = 8,428.55/x
  3. Step 3: Cross multiply
    15,016.20x = 22,493.55 × 8,428.55
  4. Step 4: Simplify right side
    15,016.20x = 189,588,010.85
  5. Step 5: Solve for x
    x = 189,588,010.85/15,016.20
  6. Step 6: Final answer
    x = 12,625.57

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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.