Home / 9,921.24-13,690.31-5,942.25

Finding the Fourth Proportional to 9,921.24, 13,690.31 and 5,942.25

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Solution

The fourth proportional to 9,921.24, 13,690.31 and 5,942.25 is: 8,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.24 : 13,690.31 = 5,942.25 : x
  2. Step 2: Convert to fraction form
    9,921.24/13,690.31 = 5,942.25/x
  3. Step 3: Cross multiply
    9,921.24x = 13,690.31 × 5,942.25
  4. Step 4: Simplify right side
    9,921.24x = 81,351,244.60
  5. Step 5: Solve for x
    x = 81,351,244.60/9,921.24
  6. Step 6: Final answer
    x = 8,199.71

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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.