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Finding the Fourth Proportional to 7,165.91, 9,892.02 and 6,717.56

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Solution

The fourth proportional to 7,165.91, 9,892.02 and 6,717.56 is: 9,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.91 : 9,892.02 = 6,717.56 : x
  2. Step 2: Convert to fraction form
    7,165.91/9,892.02 = 6,717.56/x
  3. Step 3: Cross multiply
    7,165.91x = 9,892.02 × 6,717.56
  4. Step 4: Simplify right side
    7,165.91x = 66,450,237.87
  5. Step 5: Solve for x
    x = 66,450,237.87/7,165.91
  6. Step 6: Final answer
    x = 9,273.11

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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.