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Finding the Fourth Proportional to 12,230.82, 18,348.48 and 5,210.82

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Solution

The fourth proportional to 12,230.82, 18,348.48 and 5,210.82 is: 7,817.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.82 : 18,348.48 = 5,210.82 : x
  2. Step 2: Convert to fraction form
    12,230.82/18,348.48 = 5,210.82/x
  3. Step 3: Cross multiply
    12,230.82x = 18,348.48 × 5,210.82
  4. Step 4: Simplify right side
    12,230.82x = 95,610,626.55
  5. Step 5: Solve for x
    x = 95,610,626.55/12,230.82
  6. Step 6: Final answer
    x = 7,817.19

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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.