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Finding the Fourth Proportional to 14,419.84, 21,627.84 and 9,171.04

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Solution

The fourth proportional to 14,419.84, 21,627.84 and 9,171.04 is: 13,755.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.84 : 21,627.84 = 9,171.04 : x
  2. Step 2: Convert to fraction form
    14,419.84/21,627.84 = 9,171.04/x
  3. Step 3: Cross multiply
    14,419.84x = 21,627.84 × 9,171.04
  4. Step 4: Simplify right side
    14,419.84x = 198,349,785.75
  5. Step 5: Solve for x
    x = 198,349,785.75/14,419.84
  6. Step 6: Final answer
    x = 13,755.34

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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.