Home / 8,618.27-12,928.82-4,236.17

Finding the Fourth Proportional to 8,618.27, 12,928.82 and 4,236.17

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Solution

The fourth proportional to 8,618.27, 12,928.82 and 4,236.17 is: 6,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.27 : 12,928.82 = 4,236.17 : x
  2. Step 2: Convert to fraction form
    8,618.27/12,928.82 = 4,236.17/x
  3. Step 3: Cross multiply
    8,618.27x = 12,928.82 × 4,236.17
  4. Step 4: Simplify right side
    8,618.27x = 54,768,593.59
  5. Step 5: Solve for x
    x = 54,768,593.59/8,618.27
  6. Step 6: Final answer
    x = 6,354.94

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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.