Home / 12,874.14-17,763.30-9,331.20

Finding the Fourth Proportional to 12,874.14, 17,763.30 and 9,331.20

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Solution

The fourth proportional to 12,874.14, 17,763.30 and 9,331.20 is: 12,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.14 : 17,763.30 = 9,331.20 : x
  2. Step 2: Convert to fraction form
    12,874.14/17,763.30 = 9,331.20/x
  3. Step 3: Cross multiply
    12,874.14x = 17,763.30 × 9,331.20
  4. Step 4: Simplify right side
    12,874.14x = 165,752,904.96
  5. Step 5: Solve for x
    x = 165,752,904.96/12,874.14
  6. Step 6: Final answer
    x = 12,874.87

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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.