Home / 16,073.10-22,180.64-8,999.78

Finding the Fourth Proportional to 16,073.10, 22,180.64 and 8,999.78

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Solution

The fourth proportional to 16,073.10, 22,180.64 and 8,999.78 is: 12,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,073.10 : 22,180.64 = 8,999.78 : x
  2. Step 2: Convert to fraction form
    16,073.10/22,180.64 = 8,999.78/x
  3. Step 3: Cross multiply
    16,073.10x = 22,180.64 × 8,999.78
  4. Step 4: Simplify right side
    16,073.10x = 199,620,724.36
  5. Step 5: Solve for x
    x = 199,620,724.36/16,073.10
  6. Step 6: Final answer
    x = 12,419.55

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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.