Home / 7,867.32-11,800.91-3,187.25

Finding the Fourth Proportional to 7,867.32, 11,800.91 and 3,187.25

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Solution

The fourth proportional to 7,867.32, 11,800.91 and 3,187.25 is: 4,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.32 : 11,800.91 = 3,187.25 : x
  2. Step 2: Convert to fraction form
    7,867.32/11,800.91 = 3,187.25/x
  3. Step 3: Cross multiply
    7,867.32x = 11,800.91 × 3,187.25
  4. Step 4: Simplify right side
    7,867.32x = 37,612,443.61
  5. Step 5: Solve for x
    x = 37,612,443.61/7,867.32
  6. Step 6: Final answer
    x = 4,780.85

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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.