Home / 12,257.82-18,388.75-4,862.32

Finding the Fourth Proportional to 12,257.82, 18,388.75 and 4,862.32

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Solution

The fourth proportional to 12,257.82, 18,388.75 and 4,862.32 is: 7,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.82 : 18,388.75 = 4,862.32 : x
  2. Step 2: Convert to fraction form
    12,257.82/18,388.75 = 4,862.32/x
  3. Step 3: Cross multiply
    12,257.82x = 18,388.75 × 4,862.32
  4. Step 4: Simplify right side
    12,257.82x = 89,411,986.90
  5. Step 5: Solve for x
    x = 89,411,986.90/12,257.82
  6. Step 6: Final answer
    x = 7,294.28

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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.