Home / 13,568.58-18,733.78-8,471.86

Finding the Fourth Proportional to 13,568.58, 18,733.78 and 8,471.86

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Solution

The fourth proportional to 13,568.58, 18,733.78 and 8,471.86 is: 11,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.58 : 18,733.78 = 8,471.86 : x
  2. Step 2: Convert to fraction form
    13,568.58/18,733.78 = 8,471.86/x
  3. Step 3: Cross multiply
    13,568.58x = 18,733.78 × 8,471.86
  4. Step 4: Simplify right side
    13,568.58x = 158,709,853.00
  5. Step 5: Solve for x
    x = 158,709,853.00/13,568.58
  6. Step 6: Final answer
    x = 11,696.87

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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.