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Finding the Fourth Proportional to 8,101.80, 11,158.02 and 6,235.56

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Solution

The fourth proportional to 8,101.80, 11,158.02 and 6,235.56 is: 8,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.80 : 11,158.02 = 6,235.56 : x
  2. Step 2: Convert to fraction form
    8,101.80/11,158.02 = 6,235.56/x
  3. Step 3: Cross multiply
    8,101.80x = 11,158.02 × 6,235.56
  4. Step 4: Simplify right side
    8,101.80x = 69,576,503.19
  5. Step 5: Solve for x
    x = 69,576,503.19/8,101.80
  6. Step 6: Final answer
    x = 8,587.78

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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.