Home / 11,938.92-17,919.33-6,398.52

Finding the Fourth Proportional to 11,938.92, 17,919.33 and 6,398.52

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Solution

The fourth proportional to 11,938.92, 17,919.33 and 6,398.52 is: 9,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.92 : 17,919.33 = 6,398.52 : x
  2. Step 2: Convert to fraction form
    11,938.92/17,919.33 = 6,398.52/x
  3. Step 3: Cross multiply
    11,938.92x = 17,919.33 × 6,398.52
  4. Step 4: Simplify right side
    11,938.92x = 114,657,191.39
  5. Step 5: Solve for x
    x = 114,657,191.39/11,938.92
  6. Step 6: Final answer
    x = 9,603.65

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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.