Home / 10,405.25-15,604.62-3,478.13

Finding the Fourth Proportional to 10,405.25, 15,604.62 and 3,478.13

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Solution

The fourth proportional to 10,405.25, 15,604.62 and 3,478.13 is: 5,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.25 : 15,604.62 = 3,478.13 : x
  2. Step 2: Convert to fraction form
    10,405.25/15,604.62 = 3,478.13/x
  3. Step 3: Cross multiply
    10,405.25x = 15,604.62 × 3,478.13
  4. Step 4: Simplify right side
    10,405.25x = 54,274,896.96
  5. Step 5: Solve for x
    x = 54,274,896.96/10,405.25
  6. Step 6: Final answer
    x = 5,216.11

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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.