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Finding the Fourth Proportional to 8,666.60, 11,960.07 and 5,084.13

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Solution

The fourth proportional to 8,666.60, 11,960.07 and 5,084.13 is: 7,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.60 : 11,960.07 = 5,084.13 : x
  2. Step 2: Convert to fraction form
    8,666.60/11,960.07 = 5,084.13/x
  3. Step 3: Cross multiply
    8,666.60x = 11,960.07 × 5,084.13
  4. Step 4: Simplify right side
    8,666.60x = 60,806,550.69
  5. Step 5: Solve for x
    x = 60,806,550.69/8,666.60
  6. Step 6: Final answer
    x = 7,016.20

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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.