Home / 18,443.18-25,453.87-11,271.62

Finding the Fourth Proportional to 18,443.18, 25,453.87 and 11,271.62

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Solution

The fourth proportional to 18,443.18, 25,453.87 and 11,271.62 is: 15,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.18 : 25,453.87 = 11,271.62 : x
  2. Step 2: Convert to fraction form
    18,443.18/25,453.87 = 11,271.62/x
  3. Step 3: Cross multiply
    18,443.18x = 25,453.87 × 11,271.62
  4. Step 4: Simplify right side
    18,443.18x = 286,906,194.72
  5. Step 5: Solve for x
    x = 286,906,194.72/18,443.18
  6. Step 6: Final answer
    x = 15,556.23

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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.