Home / 8,279.91-12,419.85-5,825.70

Finding the Fourth Proportional to 8,279.91, 12,419.85 and 5,825.70

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Solution

The fourth proportional to 8,279.91, 12,419.85 and 5,825.70 is: 8,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.91 : 12,419.85 = 5,825.70 : x
  2. Step 2: Convert to fraction form
    8,279.91/12,419.85 = 5,825.70/x
  3. Step 3: Cross multiply
    8,279.91x = 12,419.85 × 5,825.70
  4. Step 4: Simplify right side
    8,279.91x = 72,354,320.15
  5. Step 5: Solve for x
    x = 72,354,320.15/8,279.91
  6. Step 6: Final answer
    x = 8,738.54

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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.