Home / 10,220.05-15,328.14-3,199

Finding the Fourth Proportional to 10,220.05, 15,328.14 and 3,199

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Solution

The fourth proportional to 10,220.05, 15,328.14 and 3,199 is: 4,797.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.05 : 15,328.14 = 3,199 : x
  2. Step 2: Convert to fraction form
    10,220.05/15,328.14 = 3,199/x
  3. Step 3: Cross multiply
    10,220.05x = 15,328.14 × 3,199
  4. Step 4: Simplify right side
    10,220.05x = 49,034,719.86
  5. Step 5: Solve for x
    x = 49,034,719.86/10,220.05
  6. Step 6: Final answer
    x = 4,797.89

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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.