Home / 10,945.15-16,420.04-3,549.04

Finding the Fourth Proportional to 10,945.15, 16,420.04 and 3,549.04

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Solution

The fourth proportional to 10,945.15, 16,420.04 and 3,549.04 is: 5,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.15 : 16,420.04 = 3,549.04 : x
  2. Step 2: Convert to fraction form
    10,945.15/16,420.04 = 3,549.04/x
  3. Step 3: Cross multiply
    10,945.15x = 16,420.04 × 3,549.04
  4. Step 4: Simplify right side
    10,945.15x = 58,275,287.79
  5. Step 5: Solve for x
    x = 58,275,287.79/10,945.15
  6. Step 6: Final answer
    x = 5,324.30

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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.