Home / 13,568.25-18,727.83-8,858.91

Finding the Fourth Proportional to 13,568.25, 18,727.83 and 8,858.91

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Solution

The fourth proportional to 13,568.25, 18,727.83 and 8,858.91 is: 12,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.25 : 18,727.83 = 8,858.91 : x
  2. Step 2: Convert to fraction form
    13,568.25/18,727.83 = 8,858.91/x
  3. Step 3: Cross multiply
    13,568.25x = 18,727.83 × 8,858.91
  4. Step 4: Simplify right side
    13,568.25x = 165,908,160.47
  5. Step 5: Solve for x
    x = 165,908,160.47/13,568.25
  6. Step 6: Final answer
    x = 12,227.68

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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.