Home / 8,279.10-12,410.55-4,115.70

Finding the Fourth Proportional to 8,279.10, 12,410.55 and 4,115.70

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Solution

The fourth proportional to 8,279.10, 12,410.55 and 4,115.70 is: 6,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.10 : 12,410.55 = 4,115.70 : x
  2. Step 2: Convert to fraction form
    8,279.10/12,410.55 = 4,115.70/x
  3. Step 3: Cross multiply
    8,279.10x = 12,410.55 × 4,115.70
  4. Step 4: Simplify right side
    8,279.10x = 51,078,100.64
  5. Step 5: Solve for x
    x = 51,078,100.64/8,279.10
  6. Step 6: Final answer
    x = 6,169.52

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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.