Home / 8,412.24-12,618.80-2,865.76

Finding the Fourth Proportional to 8,412.24, 12,618.80 and 2,865.76

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Solution

The fourth proportional to 8,412.24, 12,618.80 and 2,865.76 is: 4,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.24 : 12,618.80 = 2,865.76 : x
  2. Step 2: Convert to fraction form
    8,412.24/12,618.80 = 2,865.76/x
  3. Step 3: Cross multiply
    8,412.24x = 12,618.80 × 2,865.76
  4. Step 4: Simplify right side
    8,412.24x = 36,162,452.29
  5. Step 5: Solve for x
    x = 36,162,452.29/8,412.24
  6. Step 6: Final answer
    x = 4,298.79

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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.