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Finding the Fourth Proportional to 14,001.71, 21,005.82 and 6,211.13

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Solution

The fourth proportional to 14,001.71, 21,005.82 and 6,211.13 is: 9,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.71 : 21,005.82 = 6,211.13 : x
  2. Step 2: Convert to fraction form
    14,001.71/21,005.82 = 6,211.13/x
  3. Step 3: Cross multiply
    14,001.71x = 21,005.82 × 6,211.13
  4. Step 4: Simplify right side
    14,001.71x = 130,469,773.75
  5. Step 5: Solve for x
    x = 130,469,773.75/14,001.71
  6. Step 6: Final answer
    x = 9,318.13

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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.