Home / 10,236.80-15,363.30-3,999.80

Finding the Fourth Proportional to 10,236.80, 15,363.30 and 3,999.80

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Solution

The fourth proportional to 10,236.80, 15,363.30 and 3,999.80 is: 6,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,236.80 : 15,363.30 = 3,999.80 : x
  2. Step 2: Convert to fraction form
    10,236.80/15,363.30 = 3,999.80/x
  3. Step 3: Cross multiply
    10,236.80x = 15,363.30 × 3,999.80
  4. Step 4: Simplify right side
    10,236.80x = 61,450,127.34
  5. Step 5: Solve for x
    x = 61,450,127.34/10,236.80
  6. Step 6: Final answer
    x = 6,002.86

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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.