Home / 12,293.72-18,438.33-3,287.95

Finding the Fourth Proportional to 12,293.72, 18,438.33 and 3,287.95

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Solution

The fourth proportional to 12,293.72, 18,438.33 and 3,287.95 is: 4,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.72 : 18,438.33 = 3,287.95 : x
  2. Step 2: Convert to fraction form
    12,293.72/18,438.33 = 3,287.95/x
  3. Step 3: Cross multiply
    12,293.72x = 18,438.33 × 3,287.95
  4. Step 4: Simplify right side
    12,293.72x = 60,624,377.07
  5. Step 5: Solve for x
    x = 60,624,377.07/12,293.72
  6. Step 6: Final answer
    x = 4,931.33

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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.