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Finding the Fourth Proportional to 8,751.97, 13,130.63 and 5,245.88

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Solution

The fourth proportional to 8,751.97, 13,130.63 and 5,245.88 is: 7,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.97 : 13,130.63 = 5,245.88 : x
  2. Step 2: Convert to fraction form
    8,751.97/13,130.63 = 5,245.88/x
  3. Step 3: Cross multiply
    8,751.97x = 13,130.63 × 5,245.88
  4. Step 4: Simplify right side
    8,751.97x = 68,881,683.08
  5. Step 5: Solve for x
    x = 68,881,683.08/8,751.97
  6. Step 6: Final answer
    x = 7,870.42

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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.