Home / 6,913.76-10,362.42-3,986

Finding the Fourth Proportional to 6,913.76, 10,362.42 and 3,986

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Solution

The fourth proportional to 6,913.76, 10,362.42 and 3,986 is: 5,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.76 : 10,362.42 = 3,986 : x
  2. Step 2: Convert to fraction form
    6,913.76/10,362.42 = 3,986/x
  3. Step 3: Cross multiply
    6,913.76x = 10,362.42 × 3,986
  4. Step 4: Simplify right side
    6,913.76x = 41,304,606.12
  5. Step 5: Solve for x
    x = 41,304,606.12/6,913.76
  6. Step 6: Final answer
    x = 5,974.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.