Home / 8,751.20-13,129.05-2,511.65

Finding the Fourth Proportional to 8,751.20, 13,129.05 and 2,511.65

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Solution

The fourth proportional to 8,751.20, 13,129.05 and 2,511.65 is: 3,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.20 : 13,129.05 = 2,511.65 : x
  2. Step 2: Convert to fraction form
    8,751.20/13,129.05 = 2,511.65/x
  3. Step 3: Cross multiply
    8,751.20x = 13,129.05 × 2,511.65
  4. Step 4: Simplify right side
    8,751.20x = 32,975,512.79
  5. Step 5: Solve for x
    x = 32,975,512.79/8,751.20
  6. Step 6: Final answer
    x = 3,768.11

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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.