Home / 12,013.58-18,020.39-3,248.49

Finding the Fourth Proportional to 12,013.58, 18,020.39 and 3,248.49

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Solution

The fourth proportional to 12,013.58, 18,020.39 and 3,248.49 is: 4,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.58 : 18,020.39 = 3,248.49 : x
  2. Step 2: Convert to fraction form
    12,013.58/18,020.39 = 3,248.49/x
  3. Step 3: Cross multiply
    12,013.58x = 18,020.39 × 3,248.49
  4. Step 4: Simplify right side
    12,013.58x = 58,539,087.27
  5. Step 5: Solve for x
    x = 58,539,087.27/12,013.58
  6. Step 6: Final answer
    x = 4,872.74

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Double scale
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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.