Home / 9,921.92-13,691.80-5,945.24

Finding the Fourth Proportional to 9,921.92, 13,691.80 and 5,945.24

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Solution

The fourth proportional to 9,921.92, 13,691.80 and 5,945.24 is: 8,204.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.92 : 13,691.80 = 5,945.24 : x
  2. Step 2: Convert to fraction form
    9,921.92/13,691.80 = 5,945.24/x
  3. Step 3: Cross multiply
    9,921.92x = 13,691.80 × 5,945.24
  4. Step 4: Simplify right side
    9,921.92x = 81,401,037.03
  5. Step 5: Solve for x
    x = 81,401,037.03/9,921.92
  6. Step 6: Final answer
    x = 8,204.16

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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.