Home / 6,887.39-9,505.40-3,863.34

Finding the Fourth Proportional to 6,887.39, 9,505.40 and 3,863.34

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Solution

The fourth proportional to 6,887.39, 9,505.40 and 3,863.34 is: 5,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.39 : 9,505.40 = 3,863.34 : x
  2. Step 2: Convert to fraction form
    6,887.39/9,505.40 = 3,863.34/x
  3. Step 3: Cross multiply
    6,887.39x = 9,505.40 × 3,863.34
  4. Step 4: Simplify right side
    6,887.39x = 36,722,623.71
  5. Step 5: Solve for x
    x = 36,722,623.71/6,887.39
  6. Step 6: Final answer
    x = 5,331.86

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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.