Home / 15,189.40-22,780.32-5,329

Finding the Fourth Proportional to 15,189.40, 22,780.32 and 5,329

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Solution

The fourth proportional to 15,189.40, 22,780.32 and 5,329 is: 7,992.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189.40 : 22,780.32 = 5,329 : x
  2. Step 2: Convert to fraction form
    15,189.40/22,780.32 = 5,329/x
  3. Step 3: Cross multiply
    15,189.40x = 22,780.32 × 5,329
  4. Step 4: Simplify right side
    15,189.40x = 121,396,325.28
  5. Step 5: Solve for x
    x = 121,396,325.28/15,189.40
  6. Step 6: Final answer
    x = 7,992.17

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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.