Home / 10,981.30-15,154.22-5,945.56

Finding the Fourth Proportional to 10,981.30, 15,154.22 and 5,945.56

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Solution

The fourth proportional to 10,981.30, 15,154.22 and 5,945.56 is: 8,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.30 : 15,154.22 = 5,945.56 : x
  2. Step 2: Convert to fraction form
    10,981.30/15,154.22 = 5,945.56/x
  3. Step 3: Cross multiply
    10,981.30x = 15,154.22 × 5,945.56
  4. Step 4: Simplify right side
    10,981.30x = 90,100,324.26
  5. Step 5: Solve for x
    x = 90,100,324.26/10,981.30
  6. Step 6: Final answer
    x = 8,204.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.