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Finding the Fourth Proportional to 12,754.13, 17,600.90 and 7,165.13

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Solution

The fourth proportional to 12,754.13, 17,600.90 and 7,165.13 is: 9,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.13 : 17,600.90 = 7,165.13 : x
  2. Step 2: Convert to fraction form
    12,754.13/17,600.90 = 7,165.13/x
  3. Step 3: Cross multiply
    12,754.13x = 17,600.90 × 7,165.13
  4. Step 4: Simplify right side
    12,754.13x = 126,112,612.79
  5. Step 5: Solve for x
    x = 126,112,612.79/12,754.13
  6. Step 6: Final answer
    x = 9,887.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.