Home / 6,867-9,475.38-3,881.88

Finding the Fourth Proportional to 6,867, 9,475.38 and 3,881.88

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Solution

The fourth proportional to 6,867, 9,475.38 and 3,881.88 is: 5,356.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867 : 9,475.38 = 3,881.88 : x
  2. Step 2: Convert to fraction form
    6,867/9,475.38 = 3,881.88/x
  3. Step 3: Cross multiply
    6,867x = 9,475.38 × 3,881.88
  4. Step 4: Simplify right side
    6,867x = 36,782,288.11
  5. Step 5: Solve for x
    x = 36,782,288.11/6,867
  6. Step 6: Final answer
    x = 5,356.38

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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.