Home / 12,257.19-18,387.78-11,017.41

Finding the Fourth Proportional to 12,257.19, 18,387.78 and 11,017.41

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Solution

The fourth proportional to 12,257.19, 18,387.78 and 11,017.41 is: 16,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.19 : 18,387.78 = 11,017.41 : x
  2. Step 2: Convert to fraction form
    12,257.19/18,387.78 = 11,017.41/x
  3. Step 3: Cross multiply
    12,257.19x = 18,387.78 × 11,017.41
  4. Step 4: Simplify right side
    12,257.19x = 202,585,711.25
  5. Step 5: Solve for x
    x = 202,585,711.25/12,257.19
  6. Step 6: Final answer
    x = 16,527.91

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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.