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Finding the Fourth Proportional to 14,012.97, 21,020.94 and 5,691.74

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Solution

The fourth proportional to 14,012.97, 21,020.94 and 5,691.74 is: 8,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.97 : 21,020.94 = 5,691.74 : x
  2. Step 2: Convert to fraction form
    14,012.97/21,020.94 = 5,691.74/x
  3. Step 3: Cross multiply
    14,012.97x = 21,020.94 × 5,691.74
  4. Step 4: Simplify right side
    14,012.97x = 119,645,813.30
  5. Step 5: Solve for x
    x = 119,645,813.30/14,012.97
  6. Step 6: Final answer
    x = 8,538.22

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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.