Home / 12,257.53-18,388.01-4,862.72

Finding the Fourth Proportional to 12,257.53, 18,388.01 and 4,862.72

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Solution

The fourth proportional to 12,257.53, 18,388.01 and 4,862.72 is: 7,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.53 : 18,388.01 = 4,862.72 : x
  2. Step 2: Convert to fraction form
    12,257.53/18,388.01 = 4,862.72/x
  3. Step 3: Cross multiply
    12,257.53x = 18,388.01 × 4,862.72
  4. Step 4: Simplify right side
    12,257.53x = 89,415,743.99
  5. Step 5: Solve for x
    x = 89,415,743.99/12,257.53
  6. Step 6: Final answer
    x = 7,294.76

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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.