Home / 14,872.80-20,524.46-8,158.55

Finding the Fourth Proportional to 14,872.80, 20,524.46 and 8,158.55

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Solution

The fourth proportional to 14,872.80, 20,524.46 and 8,158.55 is: 11,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.80 : 20,524.46 = 8,158.55 : x
  2. Step 2: Convert to fraction form
    14,872.80/20,524.46 = 8,158.55/x
  3. Step 3: Cross multiply
    14,872.80x = 20,524.46 × 8,158.55
  4. Step 4: Simplify right side
    14,872.80x = 167,449,689.72
  5. Step 5: Solve for x
    x = 167,449,689.72/14,872.80
  6. Step 6: Final answer
    x = 11,258.79

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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.