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Finding the Fourth Proportional to 8,560, 12,815.04 and 6,087.04

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Solution

The fourth proportional to 8,560, 12,815.04 and 6,087.04 is: 9,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560 : 12,815.04 = 6,087.04 : x
  2. Step 2: Convert to fraction form
    8,560/12,815.04 = 6,087.04/x
  3. Step 3: Cross multiply
    8,560x = 12,815.04 × 6,087.04
  4. Step 4: Simplify right side
    8,560x = 78,005,661.08
  5. Step 5: Solve for x
    x = 78,005,661.08/8,560
  6. Step 6: Final answer
    x = 9,112.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.