Home / 8,518.92-12,777.42-2,279.58

Finding the Fourth Proportional to 8,518.92, 12,777.42 and 2,279.58

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Solution

The fourth proportional to 8,518.92, 12,777.42 and 2,279.58 is: 3,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.92 : 12,777.42 = 2,279.58 : x
  2. Step 2: Convert to fraction form
    8,518.92/12,777.42 = 2,279.58/x
  3. Step 3: Cross multiply
    8,518.92x = 12,777.42 × 2,279.58
  4. Step 4: Simplify right side
    8,518.92x = 29,127,151.08
  5. Step 5: Solve for x
    x = 29,127,151.08/8,518.92
  6. Step 6: Final answer
    x = 3,419.11

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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.