Home / 8,255.40-12,352.19-4,911.45

Finding the Fourth Proportional to 8,255.40, 12,352.19 and 4,911.45

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Solution

The fourth proportional to 8,255.40, 12,352.19 and 4,911.45 is: 7,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.40 : 12,352.19 = 4,911.45 : x
  2. Step 2: Convert to fraction form
    8,255.40/12,352.19 = 4,911.45/x
  3. Step 3: Cross multiply
    8,255.40x = 12,352.19 × 4,911.45
  4. Step 4: Simplify right side
    8,255.40x = 60,667,139.02
  5. Step 5: Solve for x
    x = 60,667,139.02/8,255.40
  6. Step 6: Final answer
    x = 7,348.78

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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.