Home / 10,981.22-15,154.09-5,945.44

Finding the Fourth Proportional to 10,981.22, 15,154.09 and 5,945.44

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Solution

The fourth proportional to 10,981.22, 15,154.09 and 5,945.44 is: 8,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.22 : 15,154.09 = 5,945.44 : x
  2. Step 2: Convert to fraction form
    10,981.22/15,154.09 = 5,945.44/x
  3. Step 3: Cross multiply
    10,981.22x = 15,154.09 × 5,945.44
  4. Step 4: Simplify right side
    10,981.22x = 90,097,665.24
  5. Step 5: Solve for x
    x = 90,097,665.24/10,981.22
  6. Step 6: Final answer
    x = 8,204.71

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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.