Home / 16,218.64-22,382.52-9,145.08

Finding the Fourth Proportional to 16,218.64, 22,382.52 and 9,145.08

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Solution

The fourth proportional to 16,218.64, 22,382.52 and 9,145.08 is: 12,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.64 : 22,382.52 = 9,145.08 : x
  2. Step 2: Convert to fraction form
    16,218.64/22,382.52 = 9,145.08/x
  3. Step 3: Cross multiply
    16,218.64x = 22,382.52 × 9,145.08
  4. Step 4: Simplify right side
    16,218.64x = 204,689,936.00
  5. Step 5: Solve for x
    x = 204,689,936.00/16,218.64
  6. Step 6: Final answer
    x = 12,620.66

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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.