Home / 18,400.05-27,578.48-8,518.46

Finding the Fourth Proportional to 18,400.05, 27,578.48 and 8,518.46

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Solution

The fourth proportional to 18,400.05, 27,578.48 and 8,518.46 is: 12,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.05 : 27,578.48 = 8,518.46 : x
  2. Step 2: Convert to fraction form
    18,400.05/27,578.48 = 8,518.46/x
  3. Step 3: Cross multiply
    18,400.05x = 27,578.48 × 8,518.46
  4. Step 4: Simplify right side
    18,400.05x = 234,925,998.26
  5. Step 5: Solve for x
    x = 234,925,998.26/18,400.05
  6. Step 6: Final answer
    x = 12,767.68

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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.