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Finding the Fourth Proportional to 8,559, 12,801.44 and 5,040.62

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Solution

The fourth proportional to 8,559, 12,801.44 and 5,040.62 is: 7,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559 : 12,801.44 = 5,040.62 : x
  2. Step 2: Convert to fraction form
    8,559/12,801.44 = 5,040.62/x
  3. Step 3: Cross multiply
    8,559x = 12,801.44 × 5,040.62
  4. Step 4: Simplify right side
    8,559x = 64,527,194.49
  5. Step 5: Solve for x
    x = 64,527,194.49/8,559
  6. Step 6: Final answer
    x = 7,539.10

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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.