Home / 13,568.22-18,713.86-11,886.71

Finding the Fourth Proportional to 13,568.22, 18,713.86 and 11,886.71

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Solution

The fourth proportional to 13,568.22, 18,713.86 and 11,886.71 is: 16,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.22 : 18,713.86 = 11,886.71 : x
  2. Step 2: Convert to fraction form
    13,568.22/18,713.86 = 11,886.71/x
  3. Step 3: Cross multiply
    13,568.22x = 18,713.86 × 11,886.71
  4. Step 4: Simplify right side
    13,568.22x = 222,446,226.80
  5. Step 5: Solve for x
    x = 222,446,226.80/13,568.22
  6. Step 6: Final answer
    x = 16,394.65

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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.