Home / 18,617.75-27,915.31-7,511.43

Finding the Fourth Proportional to 18,617.75, 27,915.31 and 7,511.43

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Solution

The fourth proportional to 18,617.75, 27,915.31 and 7,511.43 is: 11,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.75 : 27,915.31 = 7,511.43 : x
  2. Step 2: Convert to fraction form
    18,617.75/27,915.31 = 7,511.43/x
  3. Step 3: Cross multiply
    18,617.75x = 27,915.31 × 7,511.43
  4. Step 4: Simplify right side
    18,617.75x = 209,683,989.94
  5. Step 5: Solve for x
    x = 209,683,989.94/18,617.75
  6. Step 6: Final answer
    x = 11,262.59

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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.