Home / 13,516.74-18,653.43-8,481.18

Finding the Fourth Proportional to 13,516.74, 18,653.43 and 8,481.18

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Solution

The fourth proportional to 13,516.74, 18,653.43 and 8,481.18 is: 11,704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.74 : 18,653.43 = 8,481.18 : x
  2. Step 2: Convert to fraction form
    13,516.74/18,653.43 = 8,481.18/x
  3. Step 3: Cross multiply
    13,516.74x = 18,653.43 × 8,481.18
  4. Step 4: Simplify right side
    13,516.74x = 158,203,097.45
  5. Step 5: Solve for x
    x = 158,203,097.45/13,516.74
  6. Step 6: Final answer
    x = 11,704.23

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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.