Home / 9,431.11-13,015.92-5,239.36

Finding the Fourth Proportional to 9,431.11, 13,015.92 and 5,239.36

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Solution

The fourth proportional to 9,431.11, 13,015.92 and 5,239.36 is: 7,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.11 : 13,015.92 = 5,239.36 : x
  2. Step 2: Convert to fraction form
    9,431.11/13,015.92 = 5,239.36/x
  3. Step 3: Cross multiply
    9,431.11x = 13,015.92 × 5,239.36
  4. Step 4: Simplify right side
    9,431.11x = 68,195,090.61
  5. Step 5: Solve for x
    x = 68,195,090.61/9,431.11
  6. Step 6: Final answer
    x = 7,230.87

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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.