Home / 9,731.75-13,429.83-5,540

Finding the Fourth Proportional to 9,731.75, 13,429.83 and 5,540

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Solution

The fourth proportional to 9,731.75, 13,429.83 and 5,540 is: 7,645.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,731.75 : 13,429.83 = 5,540 : x
  2. Step 2: Convert to fraction form
    9,731.75/13,429.83 = 5,540/x
  3. Step 3: Cross multiply
    9,731.75x = 13,429.83 × 5,540
  4. Step 4: Simplify right side
    9,731.75x = 74,401,258.20
  5. Step 5: Solve for x
    x = 74,401,258.20/9,731.75
  6. Step 6: Final answer
    x = 7,645.21

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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.