Home / 15,951.78-22,012.29-8,876.70

Finding the Fourth Proportional to 15,951.78, 22,012.29 and 8,876.70

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Solution

The fourth proportional to 15,951.78, 22,012.29 and 8,876.70 is: 12,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.78 : 22,012.29 = 8,876.70 : x
  2. Step 2: Convert to fraction form
    15,951.78/22,012.29 = 8,876.70/x
  3. Step 3: Cross multiply
    15,951.78x = 22,012.29 × 8,876.70
  4. Step 4: Simplify right side
    15,951.78x = 195,396,494.64
  5. Step 5: Solve for x
    x = 195,396,494.64/15,951.78
  6. Step 6: Final answer
    x = 12,249.20

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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.