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Finding the Fourth Proportional to 8,482.06, 11,711.08 and 6,489.15

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Solution

The fourth proportional to 8,482.06, 11,711.08 and 6,489.15 is: 8,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.06 : 11,711.08 = 6,489.15 : x
  2. Step 2: Convert to fraction form
    8,482.06/11,711.08 = 6,489.15/x
  3. Step 3: Cross multiply
    8,482.06x = 11,711.08 × 6,489.15
  4. Step 4: Simplify right side
    8,482.06x = 75,994,954.78
  5. Step 5: Solve for x
    x = 75,994,954.78/8,482.06
  6. Step 6: Final answer
    x = 8,959.49

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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.