Home / 16,218.08-22,380.27-9,145.16

Finding the Fourth Proportional to 16,218.08, 22,380.27 and 9,145.16

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Solution

The fourth proportional to 16,218.08, 22,380.27 and 9,145.16 is: 12,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.08 : 22,380.27 = 9,145.16 : x
  2. Step 2: Convert to fraction form
    16,218.08/22,380.27 = 9,145.16/x
  3. Step 3: Cross multiply
    16,218.08x = 22,380.27 × 9,145.16
  4. Step 4: Simplify right side
    16,218.08x = 204,671,149.99
  5. Step 5: Solve for x
    x = 204,671,149.99/16,218.08
  6. Step 6: Final answer
    x = 12,619.94

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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.