Home / 13,144.41-18,140.76-7,324.07

Finding the Fourth Proportional to 13,144.41, 18,140.76 and 7,324.07

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Solution

The fourth proportional to 13,144.41, 18,140.76 and 7,324.07 is: 10,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.41 : 18,140.76 = 7,324.07 : x
  2. Step 2: Convert to fraction form
    13,144.41/18,140.76 = 7,324.07/x
  3. Step 3: Cross multiply
    13,144.41x = 18,140.76 × 7,324.07
  4. Step 4: Simplify right side
    13,144.41x = 132,864,105.39
  5. Step 5: Solve for x
    x = 132,864,105.39/13,144.41
  6. Step 6: Final answer
    x = 10,108.03

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Half scale
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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.