Home / 18,641.66-27,915.74-11,140.60

Finding the Fourth Proportional to 18,641.66, 27,915.74 and 11,140.60

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Solution

The fourth proportional to 18,641.66, 27,915.74 and 11,140.60 is: 16,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.66 : 27,915.74 = 11,140.60 : x
  2. Step 2: Convert to fraction form
    18,641.66/27,915.74 = 11,140.60/x
  3. Step 3: Cross multiply
    18,641.66x = 27,915.74 × 11,140.60
  4. Step 4: Simplify right side
    18,641.66x = 310,998,093.04
  5. Step 5: Solve for x
    x = 310,998,093.04/18,641.66
  6. Step 6: Final answer
    x = 16,682.96

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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.