Home / 13,336.16-18,481.80-13,148.24

Finding the Fourth Proportional to 13,336.16, 18,481.80 and 13,148.24

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Solution

The fourth proportional to 13,336.16, 18,481.80 and 13,148.24 is: 18,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.16 : 18,481.80 = 13,148.24 : x
  2. Step 2: Convert to fraction form
    13,336.16/18,481.80 = 13,148.24/x
  3. Step 3: Cross multiply
    13,336.16x = 18,481.80 × 13,148.24
  4. Step 4: Simplify right side
    13,336.16x = 243,003,142.03
  5. Step 5: Solve for x
    x = 243,003,142.03/13,336.16
  6. Step 6: Final answer
    x = 18,221.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.