Home / 11,818.80-17,728.20-9,704.70

Finding the Fourth Proportional to 11,818.80, 17,728.20 and 9,704.70

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Solution

The fourth proportional to 11,818.80, 17,728.20 and 9,704.70 is: 14,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.80 : 17,728.20 = 9,704.70 : x
  2. Step 2: Convert to fraction form
    11,818.80/17,728.20 = 9,704.70/x
  3. Step 3: Cross multiply
    11,818.80x = 17,728.20 × 9,704.70
  4. Step 4: Simplify right side
    11,818.80x = 172,046,862.54
  5. Step 5: Solve for x
    x = 172,046,862.54/11,818.80
  6. Step 6: Final answer
    x = 14,557.05

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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.