Home / 8,538.29-12,808.80-3,607.97

Finding the Fourth Proportional to 8,538.29, 12,808.80 and 3,607.97

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Solution

The fourth proportional to 8,538.29, 12,808.80 and 3,607.97 is: 5,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.29 : 12,808.80 = 3,607.97 : x
  2. Step 2: Convert to fraction form
    8,538.29/12,808.80 = 3,607.97/x
  3. Step 3: Cross multiply
    8,538.29x = 12,808.80 × 3,607.97
  4. Step 4: Simplify right side
    8,538.29x = 46,213,766.14
  5. Step 5: Solve for x
    x = 46,213,766.14/8,538.29
  6. Step 6: Final answer
    x = 5,412.53

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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.