Home / 12,645.45-18,968.18-3,284.70

Finding the Fourth Proportional to 12,645.45, 18,968.18 and 3,284.70

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Solution

The fourth proportional to 12,645.45, 18,968.18 and 3,284.70 is: 4,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.45 : 18,968.18 = 3,284.70 : x
  2. Step 2: Convert to fraction form
    12,645.45/18,968.18 = 3,284.70/x
  3. Step 3: Cross multiply
    12,645.45x = 18,968.18 × 3,284.70
  4. Step 4: Simplify right side
    12,645.45x = 62,304,764.42
  5. Step 5: Solve for x
    x = 62,304,764.42/12,645.45
  6. Step 6: Final answer
    x = 4,927.05

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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.