Home / 15,309.06-22,961.97-4,920

Finding the Fourth Proportional to 15,309.06, 22,961.97 and 4,920

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Solution

The fourth proportional to 15,309.06, 22,961.97 and 4,920 is: 7,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.06 : 22,961.97 = 4,920 : x
  2. Step 2: Convert to fraction form
    15,309.06/22,961.97 = 4,920/x
  3. Step 3: Cross multiply
    15,309.06x = 22,961.97 × 4,920
  4. Step 4: Simplify right side
    15,309.06x = 112,972,892.40
  5. Step 5: Solve for x
    x = 112,972,892.40/15,309.06
  6. Step 6: Final answer
    x = 7,379.48

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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.