Home / 8,748.76-13,108.56-6,279.88

Finding the Fourth Proportional to 8,748.76, 13,108.56 and 6,279.88

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Solution

The fourth proportional to 8,748.76, 13,108.56 and 6,279.88 is: 9,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.76 : 13,108.56 = 6,279.88 : x
  2. Step 2: Convert to fraction form
    8,748.76/13,108.56 = 6,279.88/x
  3. Step 3: Cross multiply
    8,748.76x = 13,108.56 × 6,279.88
  4. Step 4: Simplify right side
    8,748.76x = 82,320,183.77
  5. Step 5: Solve for x
    x = 82,320,183.77/8,748.76
  6. Step 6: Final answer
    x = 9,409.35

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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.