Home / 16,620.20-22,924.15-9,900.64

Finding the Fourth Proportional to 16,620.20, 22,924.15 and 9,900.64

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Solution

The fourth proportional to 16,620.20, 22,924.15 and 9,900.64 is: 13,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.20 : 22,924.15 = 9,900.64 : x
  2. Step 2: Convert to fraction form
    16,620.20/22,924.15 = 9,900.64/x
  3. Step 3: Cross multiply
    16,620.20x = 22,924.15 × 9,900.64
  4. Step 4: Simplify right side
    16,620.20x = 226,963,706.95
  5. Step 5: Solve for x
    x = 226,963,706.95/16,620.20
  6. Step 6: Final answer
    x = 13,655.90

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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.