Home / 12,618.75-18,915.30-5,227.23

Finding the Fourth Proportional to 12,618.75, 18,915.30 and 5,227.23

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Solution

The fourth proportional to 12,618.75, 18,915.30 and 5,227.23 is: 7,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.75 : 18,915.30 = 5,227.23 : x
  2. Step 2: Convert to fraction form
    12,618.75/18,915.30 = 5,227.23/x
  3. Step 3: Cross multiply
    12,618.75x = 18,915.30 × 5,227.23
  4. Step 4: Simplify right side
    12,618.75x = 98,874,623.62
  5. Step 5: Solve for x
    x = 98,874,623.62/12,618.75
  6. Step 6: Final answer
    x = 7,835.53

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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.