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Finding the Fourth Proportional to 8,879.70, 13,319.55 and 3,614.70

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Solution

The fourth proportional to 8,879.70, 13,319.55 and 3,614.70 is: 5,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.70 : 13,319.55 = 3,614.70 : x
  2. Step 2: Convert to fraction form
    8,879.70/13,319.55 = 3,614.70/x
  3. Step 3: Cross multiply
    8,879.70x = 13,319.55 × 3,614.70
  4. Step 4: Simplify right side
    8,879.70x = 48,146,177.39
  5. Step 5: Solve for x
    x = 48,146,177.39/8,879.70
  6. Step 6: Final answer
    x = 5,422.05

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1.5x scale

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.