Home / 13,392.20-18,481.13-7,342.37

Finding the Fourth Proportional to 13,392.20, 18,481.13 and 7,342.37

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Solution

The fourth proportional to 13,392.20, 18,481.13 and 7,342.37 is: 10,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.20 : 18,481.13 = 7,342.37 : x
  2. Step 2: Convert to fraction form
    13,392.20/18,481.13 = 7,342.37/x
  3. Step 3: Cross multiply
    13,392.20x = 18,481.13 × 7,342.37
  4. Step 4: Simplify right side
    13,392.20x = 135,695,282.81
  5. Step 5: Solve for x
    x = 135,695,282.81/13,392.20
  6. Step 6: Final answer
    x = 10,132.41

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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.