Home / 18,336.17-27,505.31-5,187.44

Finding the Fourth Proportional to 18,336.17, 27,505.31 and 5,187.44

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Solution

The fourth proportional to 18,336.17, 27,505.31 and 5,187.44 is: 7,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.17 : 27,505.31 = 5,187.44 : x
  2. Step 2: Convert to fraction form
    18,336.17/27,505.31 = 5,187.44/x
  3. Step 3: Cross multiply
    18,336.17x = 27,505.31 × 5,187.44
  4. Step 4: Simplify right side
    18,336.17x = 142,682,145.31
  5. Step 5: Solve for x
    x = 142,682,145.31/18,336.17
  6. Step 6: Final answer
    x = 7,781.46

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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.