Home / 12,217.70-18,331.86-4,827.56

Finding the Fourth Proportional to 12,217.70, 18,331.86 and 4,827.56

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Solution

The fourth proportional to 12,217.70, 18,331.86 and 4,827.56 is: 7,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.70 : 18,331.86 = 4,827.56 : x
  2. Step 2: Convert to fraction form
    12,217.70/18,331.86 = 4,827.56/x
  3. Step 3: Cross multiply
    12,217.70x = 18,331.86 × 4,827.56
  4. Step 4: Simplify right side
    12,217.70x = 88,498,154.06
  5. Step 5: Solve for x
    x = 88,498,154.06/12,217.70
  6. Step 6: Final answer
    x = 7,243.44

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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.