Home / 10,442.67-15,667.26-3,422.75

Finding the Fourth Proportional to 10,442.67, 15,667.26 and 3,422.75

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Solution

The fourth proportional to 10,442.67, 15,667.26 and 3,422.75 is: 5,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.67 : 15,667.26 = 3,422.75 : x
  2. Step 2: Convert to fraction form
    10,442.67/15,667.26 = 3,422.75/x
  3. Step 3: Cross multiply
    10,442.67x = 15,667.26 × 3,422.75
  4. Step 4: Simplify right side
    10,442.67x = 53,625,094.58
  5. Step 5: Solve for x
    x = 53,625,094.58/10,442.67
  6. Step 6: Final answer
    x = 5,135.19

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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.