Home / 13,391.94-18,481.02-7,423.71

Finding the Fourth Proportional to 13,391.94, 18,481.02 and 7,423.71

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Solution

The fourth proportional to 13,391.94, 18,481.02 and 7,423.71 is: 10,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.94 : 18,481.02 = 7,423.71 : x
  2. Step 2: Convert to fraction form
    13,391.94/18,481.02 = 7,423.71/x
  3. Step 3: Cross multiply
    13,391.94x = 18,481.02 × 7,423.71
  4. Step 4: Simplify right side
    13,391.94x = 137,197,732.98
  5. Step 5: Solve for x
    x = 137,197,732.98/13,391.94
  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.