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Finding the Fourth Proportional to 8,708.80, 12,012.96 and 6,187

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Solution

The fourth proportional to 8,708.80, 12,012.96 and 6,187 is: 8,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.80 : 12,012.96 = 6,187 : x
  2. Step 2: Convert to fraction form
    8,708.80/12,012.96 = 6,187/x
  3. Step 3: Cross multiply
    8,708.80x = 12,012.96 × 6,187
  4. Step 4: Simplify right side
    8,708.80x = 74,324,183.52
  5. Step 5: Solve for x
    x = 74,324,183.52/8,708.80
  6. Step 6: Final answer
    x = 8,534.38

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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.