Home / 13,392.41-18,481.68-7,424.18

Finding the Fourth Proportional to 13,392.41, 18,481.68 and 7,424.18

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Solution

The fourth proportional to 13,392.41, 18,481.68 and 7,424.18 is: 10,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.41 : 18,481.68 = 7,424.18 : x
  2. Step 2: Convert to fraction form
    13,392.41/18,481.68 = 7,424.18/x
  3. Step 3: Cross multiply
    13,392.41x = 18,481.68 × 7,424.18
  4. Step 4: Simplify right side
    13,392.41x = 137,211,319.02
  5. Step 5: Solve for x
    x = 137,211,319.02/13,392.41
  6. Step 6: Final answer
    x = 10,245.45

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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.