Home / 7,998.15-11,998.63-2,731.92

Finding the Fourth Proportional to 7,998.15, 11,998.63 and 2,731.92

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Solution

The fourth proportional to 7,998.15, 11,998.63 and 2,731.92 is: 4,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.15 : 11,998.63 = 2,731.92 : x
  2. Step 2: Convert to fraction form
    7,998.15/11,998.63 = 2,731.92/x
  3. Step 3: Cross multiply
    7,998.15x = 11,998.63 × 2,731.92
  4. Step 4: Simplify right side
    7,998.15x = 32,779,335.43
  5. Step 5: Solve for x
    x = 32,779,335.43/7,998.15
  6. Step 6: Final answer
    x = 4,098.37

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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.