Home / 15,150.45-20,902.21-8,773.56

Finding the Fourth Proportional to 15,150.45, 20,902.21 and 8,773.56

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Solution

The fourth proportional to 15,150.45, 20,902.21 and 8,773.56 is: 12,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.45 : 20,902.21 = 8,773.56 : x
  2. Step 2: Convert to fraction form
    15,150.45/20,902.21 = 8,773.56/x
  3. Step 3: Cross multiply
    15,150.45x = 20,902.21 × 8,773.56
  4. Step 4: Simplify right side
    15,150.45x = 183,386,793.57
  5. Step 5: Solve for x
    x = 183,386,793.57/15,150.45
  6. Step 6: Final answer
    x = 12,104.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.