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Finding the Fourth Proportional to 8,265.32, 11,390.42 and 8,113.52

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Solution

The fourth proportional to 8,265.32, 11,390.42 and 8,113.52 is: 11,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.32 : 11,390.42 = 8,113.52 : x
  2. Step 2: Convert to fraction form
    8,265.32/11,390.42 = 8,113.52/x
  3. Step 3: Cross multiply
    8,265.32x = 11,390.42 × 8,113.52
  4. Step 4: Simplify right side
    8,265.32x = 92,416,400.48
  5. Step 5: Solve for x
    x = 92,416,400.48/8,265.32
  6. Step 6: Final answer
    x = 11,181.22

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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.