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Finding the Fourth Proportional to 8,697.13, 11,993.19 and 7,442.34

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Solution

The fourth proportional to 8,697.13, 11,993.19 and 7,442.34 is: 10,262.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.13 : 11,993.19 = 7,442.34 : x
  2. Step 2: Convert to fraction form
    8,697.13/11,993.19 = 7,442.34/x
  3. Step 3: Cross multiply
    8,697.13x = 11,993.19 × 7,442.34
  4. Step 4: Simplify right side
    8,697.13x = 89,257,397.66
  5. Step 5: Solve for x
    x = 89,257,397.66/8,697.13
  6. Step 6: Final answer
    x = 10,262.86

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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.