Home / 8,867.40-13,287.06-5,170.56

Finding the Fourth Proportional to 8,867.40, 13,287.06 and 5,170.56

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Solution

The fourth proportional to 8,867.40, 13,287.06 and 5,170.56 is: 7,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.40 : 13,287.06 = 5,170.56 : x
  2. Step 2: Convert to fraction form
    8,867.40/13,287.06 = 5,170.56/x
  3. Step 3: Cross multiply
    8,867.40x = 13,287.06 × 5,170.56
  4. Step 4: Simplify right side
    8,867.40x = 68,701,540.95
  5. Step 5: Solve for x
    x = 68,701,540.95/8,867.40
  6. Step 6: Final answer
    x = 7,747.65

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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.