Home / 10,406.25-15,609.38-3,480.93

Finding the Fourth Proportional to 10,406.25, 15,609.38 and 3,480.93

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Solution

The fourth proportional to 10,406.25, 15,609.38 and 3,480.93 is: 5,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.25 : 15,609.38 = 3,480.93 : x
  2. Step 2: Convert to fraction form
    10,406.25/15,609.38 = 3,480.93/x
  3. Step 3: Cross multiply
    10,406.25x = 15,609.38 × 3,480.93
  4. Step 4: Simplify right side
    10,406.25x = 54,335,141.72
  5. Step 5: Solve for x
    x = 54,335,141.72/10,406.25
  6. Step 6: Final answer
    x = 5,221.40

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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.