Home / 12,380.07-18,498.66-9,358.23

Finding the Fourth Proportional to 12,380.07, 18,498.66 and 9,358.23

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Solution

The fourth proportional to 12,380.07, 18,498.66 and 9,358.23 is: 13,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.07 : 18,498.66 = 9,358.23 : x
  2. Step 2: Convert to fraction form
    12,380.07/18,498.66 = 9,358.23/x
  3. Step 3: Cross multiply
    12,380.07x = 18,498.66 × 9,358.23
  4. Step 4: Simplify right side
    12,380.07x = 173,114,714.97
  5. Step 5: Solve for x
    x = 173,114,714.97/12,380.07
  6. Step 6: Final answer
    x = 13,983.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.