Home / 10,647.38-15,971.25-3,531.65

Finding the Fourth Proportional to 10,647.38, 15,971.25 and 3,531.65

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Solution

The fourth proportional to 10,647.38, 15,971.25 and 3,531.65 is: 5,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.38 : 15,971.25 = 3,531.65 : x
  2. Step 2: Convert to fraction form
    10,647.38/15,971.25 = 3,531.65/x
  3. Step 3: Cross multiply
    10,647.38x = 15,971.25 × 3,531.65
  4. Step 4: Simplify right side
    10,647.38x = 56,404,865.06
  5. Step 5: Solve for x
    x = 56,404,865.06/10,647.38
  6. Step 6: Final answer
    x = 5,297.53

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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.