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Finding the Fourth Proportional to 8,751.54, 13,112.46 and 5,281.50

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Solution

The fourth proportional to 8,751.54, 13,112.46 and 5,281.50 is: 7,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.54 : 13,112.46 = 5,281.50 : x
  2. Step 2: Convert to fraction form
    8,751.54/13,112.46 = 5,281.50/x
  3. Step 3: Cross multiply
    8,751.54x = 13,112.46 × 5,281.50
  4. Step 4: Simplify right side
    8,751.54x = 69,253,457.49
  5. Step 5: Solve for x
    x = 69,253,457.49/8,751.54
  6. Step 6: Final answer
    x = 7,913.29

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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.