Home / 10,981.27-15,154.16-5,945.54

Finding the Fourth Proportional to 10,981.27, 15,154.16 and 5,945.54

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Solution

The fourth proportional to 10,981.27, 15,154.16 and 5,945.54 is: 8,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.27 : 15,154.16 = 5,945.54 : x
  2. Step 2: Convert to fraction form
    10,981.27/15,154.16 = 5,945.54/x
  3. Step 3: Cross multiply
    10,981.27x = 15,154.16 × 5,945.54
  4. Step 4: Simplify right side
    10,981.27x = 90,099,664.45
  5. Step 5: Solve for x
    x = 90,099,664.45/10,981.27
  6. Step 6: Final answer
    x = 8,204.85

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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.