Home / 10,316.19-15,474.49-3,390.69

Finding the Fourth Proportional to 10,316.19, 15,474.49 and 3,390.69

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Solution

The fourth proportional to 10,316.19, 15,474.49 and 3,390.69 is: 5,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.19 : 15,474.49 = 3,390.69 : x
  2. Step 2: Convert to fraction form
    10,316.19/15,474.49 = 3,390.69/x
  3. Step 3: Cross multiply
    10,316.19x = 15,474.49 × 3,390.69
  4. Step 4: Simplify right side
    10,316.19x = 52,469,181.54
  5. Step 5: Solve for x
    x = 52,469,181.54/10,316.19
  6. Step 6: Final answer
    x = 5,086.10

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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.