Home / 8,135.20-12,219.18-4,854.70

Finding the Fourth Proportional to 8,135.20, 12,219.18 and 4,854.70

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Solution

The fourth proportional to 8,135.20, 12,219.18 and 4,854.70 is: 7,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.20 : 12,219.18 = 4,854.70 : x
  2. Step 2: Convert to fraction form
    8,135.20/12,219.18 = 4,854.70/x
  3. Step 3: Cross multiply
    8,135.20x = 12,219.18 × 4,854.70
  4. Step 4: Simplify right side
    8,135.20x = 59,320,453.15
  5. Step 5: Solve for x
    x = 59,320,453.15/8,135.20
  6. Step 6: Final answer
    x = 7,291.82

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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.