Home / 13,391.93-18,481.01-7,423.71

Finding the Fourth Proportional to 13,391.93, 18,481.01 and 7,423.71

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Solution

The fourth proportional to 13,391.93, 18,481.01 and 7,423.71 is: 10,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.93 : 18,481.01 = 7,423.71 : x
  2. Step 2: Convert to fraction form
    13,391.93/18,481.01 = 7,423.71/x
  3. Step 3: Cross multiply
    13,391.93x = 18,481.01 × 7,423.71
  4. Step 4: Simplify right side
    13,391.93x = 137,197,658.75
  5. Step 5: Solve for x
    x = 137,197,658.75/13,391.93
  6. Step 6: Final answer
    x = 10,244.80

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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.