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Finding the Fourth Proportional to 8,759, 12,087.44 and 5,619.44

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Solution

The fourth proportional to 8,759, 12,087.44 and 5,619.44 is: 7,754.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759 : 12,087.44 = 5,619.44 : x
  2. Step 2: Convert to fraction form
    8,759/12,087.44 = 5,619.44/x
  3. Step 3: Cross multiply
    8,759x = 12,087.44 × 5,619.44
  4. Step 4: Simplify right side
    8,759x = 67,924,643.83
  5. Step 5: Solve for x
    x = 67,924,643.83/8,759
  6. Step 6: Final answer
    x = 7,754.84

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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.