Home / 8,251.13-12,376.70-2,779.13

Finding the Fourth Proportional to 8,251.13, 12,376.70 and 2,779.13

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Solution

The fourth proportional to 8,251.13, 12,376.70 and 2,779.13 is: 4,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.13 : 12,376.70 = 2,779.13 : x
  2. Step 2: Convert to fraction form
    8,251.13/12,376.70 = 2,779.13/x
  3. Step 3: Cross multiply
    8,251.13x = 12,376.70 × 2,779.13
  4. Step 4: Simplify right side
    8,251.13x = 34,396,458.27
  5. Step 5: Solve for x
    x = 34,396,458.27/8,251.13
  6. Step 6: Final answer
    x = 4,168.70

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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.