Home / 18,300.74-27,441.38-8,431.63

Finding the Fourth Proportional to 18,300.74, 27,441.38 and 8,431.63

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Solution

The fourth proportional to 18,300.74, 27,441.38 and 8,431.63 is: 12,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.74 : 27,441.38 = 8,431.63 : x
  2. Step 2: Convert to fraction form
    18,300.74/27,441.38 = 8,431.63/x
  3. Step 3: Cross multiply
    18,300.74x = 27,441.38 × 8,431.63
  4. Step 4: Simplify right side
    18,300.74x = 231,375,515.33
  5. Step 5: Solve for x
    x = 231,375,515.33/18,300.74
  6. Step 6: Final answer
    x = 12,642.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.