Home / 12,237.38-18,357.42-3,915.44

Finding the Fourth Proportional to 12,237.38, 18,357.42 and 3,915.44

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Solution

The fourth proportional to 12,237.38, 18,357.42 and 3,915.44 is: 5,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.38 : 18,357.42 = 3,915.44 : x
  2. Step 2: Convert to fraction form
    12,237.38/18,357.42 = 3,915.44/x
  3. Step 3: Cross multiply
    12,237.38x = 18,357.42 × 3,915.44
  4. Step 4: Simplify right side
    12,237.38x = 71,877,376.56
  5. Step 5: Solve for x
    x = 71,877,376.56/12,237.38
  6. Step 6: Final answer
    x = 5,873.59

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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.