Home / 18,398.40-27,578.44-8,529.56

Finding the Fourth Proportional to 18,398.40, 27,578.44 and 8,529.56

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Solution

The fourth proportional to 18,398.40, 27,578.44 and 8,529.56 is: 12,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.40 : 27,578.44 = 8,529.56 : x
  2. Step 2: Convert to fraction form
    18,398.40/27,578.44 = 8,529.56/x
  3. Step 3: Cross multiply
    18,398.40x = 27,578.44 × 8,529.56
  4. Step 4: Simplify right side
    18,398.40x = 235,231,958.69
  5. Step 5: Solve for x
    x = 235,231,958.69/18,398.40
  6. Step 6: Final answer
    x = 12,785.46

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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.