Home / 16,219.04-22,381.92-9,145.71

Finding the Fourth Proportional to 16,219.04, 22,381.92 and 9,145.71

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Solution

The fourth proportional to 16,219.04, 22,381.92 and 9,145.71 is: 12,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.04 : 22,381.92 = 9,145.71 : x
  2. Step 2: Convert to fraction form
    16,219.04/22,381.92 = 9,145.71/x
  3. Step 3: Cross multiply
    16,219.04x = 22,381.92 × 9,145.71
  4. Step 4: Simplify right side
    16,219.04x = 204,698,549.56
  5. Step 5: Solve for x
    x = 204,698,549.56/16,219.04
  6. Step 6: Final answer
    x = 12,620.88

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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.