Home / 10,839.20-16,258.80-9,745.70

Finding the Fourth Proportional to 10,839.20, 16,258.80 and 9,745.70

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Solution

The fourth proportional to 10,839.20, 16,258.80 and 9,745.70 is: 14,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.20 : 16,258.80 = 9,745.70 : x
  2. Step 2: Convert to fraction form
    10,839.20/16,258.80 = 9,745.70/x
  3. Step 3: Cross multiply
    10,839.20x = 16,258.80 × 9,745.70
  4. Step 4: Simplify right side
    10,839.20x = 158,453,387.16
  5. Step 5: Solve for x
    x = 158,453,387.16/10,839.20
  6. Step 6: Final answer
    x = 14,618.55

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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.