Home / 8,559.15-12,837.42-2,715

Finding the Fourth Proportional to 8,559.15, 12,837.42 and 2,715

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Solution

The fourth proportional to 8,559.15, 12,837.42 and 2,715 is: 4,072.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.15 : 12,837.42 = 2,715 : x
  2. Step 2: Convert to fraction form
    8,559.15/12,837.42 = 2,715/x
  3. Step 3: Cross multiply
    8,559.15x = 12,837.42 × 2,715
  4. Step 4: Simplify right side
    8,559.15x = 34,853,595.30
  5. Step 5: Solve for x
    x = 34,853,595.30/8,559.15
  6. Step 6: Final answer
    x = 4,072.09

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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.