Home / 12,199.12-18,298.70-2,965.12

Finding the Fourth Proportional to 12,199.12, 18,298.70 and 2,965.12

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Solution

The fourth proportional to 12,199.12, 18,298.70 and 2,965.12 is: 4,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.12 : 18,298.70 = 2,965.12 : x
  2. Step 2: Convert to fraction form
    12,199.12/18,298.70 = 2,965.12/x
  3. Step 3: Cross multiply
    12,199.12x = 18,298.70 × 2,965.12
  4. Step 4: Simplify right side
    12,199.12x = 54,257,841.34
  5. Step 5: Solve for x
    x = 54,257,841.34/12,199.12
  6. Step 6: Final answer
    x = 4,447.68

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Similar ratio
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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.