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Finding the Fourth Proportional to 9,127.97, 13,691.97 and 2,971.97

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Solution

The fourth proportional to 9,127.97, 13,691.97 and 2,971.97 is: 4,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.97 : 13,691.97 = 2,971.97 : x
  2. Step 2: Convert to fraction form
    9,127.97/13,691.97 = 2,971.97/x
  3. Step 3: Cross multiply
    9,127.97x = 13,691.97 × 2,971.97
  4. Step 4: Simplify right side
    9,127.97x = 40,692,106.97
  5. Step 5: Solve for x
    x = 40,692,106.97/9,127.97
  6. Step 6: Final answer
    x = 4,457.96

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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.