Home / 18,317.44-27,478.36-6,468.78

Finding the Fourth Proportional to 18,317.44, 27,478.36 and 6,468.78

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Solution

The fourth proportional to 18,317.44, 27,478.36 and 6,468.78 is: 9,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.44 : 27,478.36 = 6,468.78 : x
  2. Step 2: Convert to fraction form
    18,317.44/27,478.36 = 6,468.78/x
  3. Step 3: Cross multiply
    18,317.44x = 27,478.36 × 6,468.78
  4. Step 4: Simplify right side
    18,317.44x = 177,751,465.60
  5. Step 5: Solve for x
    x = 177,751,465.60/18,317.44
  6. Step 6: Final answer
    x = 9,703.95

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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.