Home / 8,468.15-11,685.80-4,691.15

Finding the Fourth Proportional to 8,468.15, 11,685.80 and 4,691.15

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Solution

The fourth proportional to 8,468.15, 11,685.80 and 4,691.15 is: 6,473.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.15 : 11,685.80 = 4,691.15 : x
  2. Step 2: Convert to fraction form
    8,468.15/11,685.80 = 4,691.15/x
  3. Step 3: Cross multiply
    8,468.15x = 11,685.80 × 4,691.15
  4. Step 4: Simplify right side
    8,468.15x = 54,819,837.79
  5. Step 5: Solve for x
    x = 54,819,837.79/8,468.15
  6. Step 6: Final answer
    x = 6,473.65

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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.