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Finding the Fourth Proportional to 14,496.39, 20,002.28 and 13,758.21

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Solution

The fourth proportional to 14,496.39, 20,002.28 and 13,758.21 is: 18,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,496.39 : 20,002.28 = 13,758.21 : x
  2. Step 2: Convert to fraction form
    14,496.39/20,002.28 = 13,758.21/x
  3. Step 3: Cross multiply
    14,496.39x = 20,002.28 × 13,758.21
  4. Step 4: Simplify right side
    14,496.39x = 275,195,499.93
  5. Step 5: Solve for x
    x = 275,195,499.93/14,496.39
  6. Step 6: Final answer
    x = 18,983.73

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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.