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Finding the Fourth Proportional to 15,013, 22,519.50 and 6,805

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Solution

The fourth proportional to 15,013, 22,519.50 and 6,805 is: 10,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013 : 22,519.50 = 6,805 : x
  2. Step 2: Convert to fraction form
    15,013/22,519.50 = 6,805/x
  3. Step 3: Cross multiply
    15,013x = 22,519.50 × 6,805
  4. Step 4: Simplify right side
    15,013x = 153,245,197.50
  5. Step 5: Solve for x
    x = 153,245,197.50/15,013
  6. Step 6: Final answer
    x = 10,207.50

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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.