Home / 7,867.29-11,800.97-3,187.39

Finding the Fourth Proportional to 7,867.29, 11,800.97 and 3,187.39

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Solution

The fourth proportional to 7,867.29, 11,800.97 and 3,187.39 is: 4,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.29 : 11,800.97 = 3,187.39 : x
  2. Step 2: Convert to fraction form
    7,867.29/11,800.97 = 3,187.39/x
  3. Step 3: Cross multiply
    7,867.29x = 11,800.97 × 3,187.39
  4. Step 4: Simplify right side
    7,867.29x = 37,614,289.78
  5. Step 5: Solve for x
    x = 37,614,289.78/7,867.29
  6. Step 6: Final answer
    x = 4,781.10

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1.5x scale

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.