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Finding the Fourth Proportional to 16,201.95, 22,360.02 and 9,128.85

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Solution

The fourth proportional to 16,201.95, 22,360.02 and 9,128.85 is: 12,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,201.95 : 22,360.02 = 9,128.85 : x
  2. Step 2: Convert to fraction form
    16,201.95/22,360.02 = 9,128.85/x
  3. Step 3: Cross multiply
    16,201.95x = 22,360.02 × 9,128.85
  4. Step 4: Simplify right side
    16,201.95x = 204,121,268.58
  5. Step 5: Solve for x
    x = 204,121,268.58/16,201.95
  6. Step 6: Final answer
    x = 12,598.56

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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.