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Finding the Fourth Proportional to 8,751.04, 13,129.84 and 5,243.50

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Solution

The fourth proportional to 8,751.04, 13,129.84 and 5,243.50 is: 7,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.04 : 13,129.84 = 5,243.50 : x
  2. Step 2: Convert to fraction form
    8,751.04/13,129.84 = 5,243.50/x
  3. Step 3: Cross multiply
    8,751.04x = 13,129.84 × 5,243.50
  4. Step 4: Simplify right side
    8,751.04x = 68,846,316.04
  5. Step 5: Solve for x
    x = 68,846,316.04/8,751.04
  6. Step 6: Final answer
    x = 7,867.22

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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.