Home / 10,119.96-15,180.66-3,547.80

Finding the Fourth Proportional to 10,119.96, 15,180.66 and 3,547.80

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Solution

The fourth proportional to 10,119.96, 15,180.66 and 3,547.80 is: 5,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.96 : 15,180.66 = 3,547.80 : x
  2. Step 2: Convert to fraction form
    10,119.96/15,180.66 = 3,547.80/x
  3. Step 3: Cross multiply
    10,119.96x = 15,180.66 × 3,547.80
  4. Step 4: Simplify right side
    10,119.96x = 53,857,945.55
  5. Step 5: Solve for x
    x = 53,857,945.55/10,119.96
  6. Step 6: Final answer
    x = 5,321.95

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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.