Home / 16,279.10-22,465.56-9,108.78

Finding the Fourth Proportional to 16,279.10, 22,465.56 and 9,108.78

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Solution

The fourth proportional to 16,279.10, 22,465.56 and 9,108.78 is: 12,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,279.10 : 22,465.56 = 9,108.78 : x
  2. Step 2: Convert to fraction form
    16,279.10/22,465.56 = 9,108.78/x
  3. Step 3: Cross multiply
    16,279.10x = 22,465.56 × 9,108.78
  4. Step 4: Simplify right side
    16,279.10x = 204,633,843.62
  5. Step 5: Solve for x
    x = 204,633,843.62/16,279.10
  6. Step 6: Final answer
    x = 12,570.34

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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.