Home / 14,147.38-21,218.32-13,444.90

Finding the Fourth Proportional to 14,147.38, 21,218.32 and 13,444.90

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Solution

The fourth proportional to 14,147.38, 21,218.32 and 13,444.90 is: 20,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.38 : 21,218.32 = 13,444.90 : x
  2. Step 2: Convert to fraction form
    14,147.38/21,218.32 = 13,444.90/x
  3. Step 3: Cross multiply
    14,147.38x = 21,218.32 × 13,444.90
  4. Step 4: Simplify right side
    14,147.38x = 285,278,190.57
  5. Step 5: Solve for x
    x = 285,278,190.57/14,147.38
  6. Step 6: Final answer
    x = 20,164.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.