Home / 16,218.93-22,382.10-9,145.38

Finding the Fourth Proportional to 16,218.93, 22,382.10 and 9,145.38

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Solution

The fourth proportional to 16,218.93, 22,382.10 and 9,145.38 is: 12,620.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.93 : 22,382.10 = 9,145.38 : x
  2. Step 2: Convert to fraction form
    16,218.93/22,382.10 = 9,145.38/x
  3. Step 3: Cross multiply
    16,218.93x = 22,382.10 × 9,145.38
  4. Step 4: Simplify right side
    16,218.93x = 204,692,809.70
  5. Step 5: Solve for x
    x = 204,692,809.70/16,218.93
  6. Step 6: Final answer
    x = 12,620.61

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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.