Home / 10,442.61-15,667.17-3,422.69

Finding the Fourth Proportional to 10,442.61, 15,667.17 and 3,422.69

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Solution

The fourth proportional to 10,442.61, 15,667.17 and 3,422.69 is: 5,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.61 : 15,667.17 = 3,422.69 : x
  2. Step 2: Convert to fraction form
    10,442.61/15,667.17 = 3,422.69/x
  3. Step 3: Cross multiply
    10,442.61x = 15,667.17 × 3,422.69
  4. Step 4: Simplify right side
    10,442.61x = 53,623,809.81
  5. Step 5: Solve for x
    x = 53,623,809.81/10,442.61
  6. Step 6: Final answer
    x = 5,135.10

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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.