Home / 12,257.25-16,915.28-6,668.25

Finding the Fourth Proportional to 12,257.25, 16,915.28 and 6,668.25

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Solution

The fourth proportional to 12,257.25, 16,915.28 and 6,668.25 is: 9,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.25 : 16,915.28 = 6,668.25 : x
  2. Step 2: Convert to fraction form
    12,257.25/16,915.28 = 6,668.25/x
  3. Step 3: Cross multiply
    12,257.25x = 16,915.28 × 6,668.25
  4. Step 4: Simplify right side
    12,257.25x = 112,795,282.52
  5. Step 5: Solve for x
    x = 112,795,282.52/12,257.25
  6. Step 6: Final answer
    x = 9,202.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.