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Finding the Fourth Proportional to 8,751.09, 13,118.31 and 5,579.62

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Solution

The fourth proportional to 8,751.09, 13,118.31 and 5,579.62 is: 8,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.09 : 13,118.31 = 5,579.62 : x
  2. Step 2: Convert to fraction form
    8,751.09/13,118.31 = 5,579.62/x
  3. Step 3: Cross multiply
    8,751.09x = 13,118.31 × 5,579.62
  4. Step 4: Simplify right side
    8,751.09x = 73,195,184.84
  5. Step 5: Solve for x
    x = 73,195,184.84/8,751.09
  6. Step 6: Final answer
    x = 8,364.12

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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.