Home / 12,424.58-18,636.89-3,659.39

Finding the Fourth Proportional to 12,424.58, 18,636.89 and 3,659.39

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Solution

The fourth proportional to 12,424.58, 18,636.89 and 3,659.39 is: 5,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.58 : 18,636.89 = 3,659.39 : x
  2. Step 2: Convert to fraction form
    12,424.58/18,636.89 = 3,659.39/x
  3. Step 3: Cross multiply
    12,424.58x = 18,636.89 × 3,659.39
  4. Step 4: Simplify right side
    12,424.58x = 68,199,537.42
  5. Step 5: Solve for x
    x = 68,199,537.42/12,424.58
  6. Step 6: Final answer
    x = 5,489.08

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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.