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Finding the Fourth Proportional to 8,820.69, 13,225.65 and 3,748.91

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Solution

The fourth proportional to 8,820.69, 13,225.65 and 3,748.91 is: 5,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.69 : 13,225.65 = 3,748.91 : x
  2. Step 2: Convert to fraction form
    8,820.69/13,225.65 = 3,748.91/x
  3. Step 3: Cross multiply
    8,820.69x = 13,225.65 × 3,748.91
  4. Step 4: Simplify right side
    8,820.69x = 49,581,691.35
  5. Step 5: Solve for x
    x = 49,581,691.35/8,820.69
  6. Step 6: Final answer
    x = 5,621.07

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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.