Home / 14,771.97-20,387.30-8,803.49

Finding the Fourth Proportional to 14,771.97, 20,387.30 and 8,803.49

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Solution

The fourth proportional to 14,771.97, 20,387.30 and 8,803.49 is: 12,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,771.97 : 20,387.30 = 8,803.49 : x
  2. Step 2: Convert to fraction form
    14,771.97/20,387.30 = 8,803.49/x
  3. Step 3: Cross multiply
    14,771.97x = 20,387.30 × 8,803.49
  4. Step 4: Simplify right side
    14,771.97x = 179,479,245.72
  5. Step 5: Solve for x
    x = 179,479,245.72/14,771.97
  6. Step 6: Final answer
    x = 12,149.99

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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.