Home / 8,326.60-12,490.03-2,779.97

Finding the Fourth Proportional to 8,326.60, 12,490.03 and 2,779.97

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Solution

The fourth proportional to 8,326.60, 12,490.03 and 2,779.97 is: 4,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.60 : 12,490.03 = 2,779.97 : x
  2. Step 2: Convert to fraction form
    8,326.60/12,490.03 = 2,779.97/x
  3. Step 3: Cross multiply
    8,326.60x = 12,490.03 × 2,779.97
  4. Step 4: Simplify right side
    8,326.60x = 34,721,849.72
  5. Step 5: Solve for x
    x = 34,721,849.72/8,326.60
  6. Step 6: Final answer
    x = 4,169.99

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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.