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Finding the Fourth Proportional to 14,001.97, 20,965.70 and 12,341.29

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Solution

The fourth proportional to 14,001.97, 20,965.70 and 12,341.29 is: 18,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.97 : 20,965.70 = 12,341.29 : x
  2. Step 2: Convert to fraction form
    14,001.97/20,965.70 = 12,341.29/x
  3. Step 3: Cross multiply
    14,001.97x = 20,965.70 × 12,341.29
  4. Step 4: Simplify right side
    14,001.97x = 258,743,722.05
  5. Step 5: Solve for x
    x = 258,743,722.05/14,001.97
  6. Step 6: Final answer
    x = 18,479.09

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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.