Home / 14,381.74-21,553.17-12,671.02

Finding the Fourth Proportional to 14,381.74, 21,553.17 and 12,671.02

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Solution

The fourth proportional to 14,381.74, 21,553.17 and 12,671.02 is: 18,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.74 : 21,553.17 = 12,671.02 : x
  2. Step 2: Convert to fraction form
    14,381.74/21,553.17 = 12,671.02/x
  3. Step 3: Cross multiply
    14,381.74x = 21,553.17 × 12,671.02
  4. Step 4: Simplify right side
    14,381.74x = 273,100,648.13
  5. Step 5: Solve for x
    x = 273,100,648.13/14,381.74
  6. Step 6: Final answer
    x = 18,989.40

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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.