Home / 10,222.76-15,330.66-3,982.28

Finding the Fourth Proportional to 10,222.76, 15,330.66 and 3,982.28

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Solution

The fourth proportional to 10,222.76, 15,330.66 and 3,982.28 is: 5,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.76 : 15,330.66 = 3,982.28 : x
  2. Step 2: Convert to fraction form
    10,222.76/15,330.66 = 3,982.28/x
  3. Step 3: Cross multiply
    10,222.76x = 15,330.66 × 3,982.28
  4. Step 4: Simplify right side
    10,222.76x = 61,050,980.70
  5. Step 5: Solve for x
    x = 61,050,980.70/10,222.76
  6. Step 6: Final answer
    x = 5,972.06

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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.