Home / 13,392.16-18,481.34-7,423.93

Finding the Fourth Proportional to 13,392.16, 18,481.34 and 7,423.93

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Solution

The fourth proportional to 13,392.16, 18,481.34 and 7,423.93 is: 10,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.16 : 18,481.34 = 7,423.93 : x
  2. Step 2: Convert to fraction form
    13,392.16/18,481.34 = 7,423.93/x
  3. Step 3: Cross multiply
    13,392.16x = 18,481.34 × 7,423.93
  4. Step 4: Simplify right side
    13,392.16x = 137,204,174.47
  5. Step 5: Solve for x
    x = 137,204,174.47/13,392.16
  6. Step 6: Final answer
    x = 10,245.11

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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.