Home / 8,518.94-12,779.13-2,279.02

Finding the Fourth Proportional to 8,518.94, 12,779.13 and 2,279.02

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Solution

The fourth proportional to 8,518.94, 12,779.13 and 2,279.02 is: 3,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.94 : 12,779.13 = 2,279.02 : x
  2. Step 2: Convert to fraction form
    8,518.94/12,779.13 = 2,279.02/x
  3. Step 3: Cross multiply
    8,518.94x = 12,779.13 × 2,279.02
  4. Step 4: Simplify right side
    8,518.94x = 29,123,892.85
  5. Step 5: Solve for x
    x = 29,123,892.85/8,518.94
  6. Step 6: Final answer
    x = 3,418.72

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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.