Home / 18,891.36-28,333.08-5,739.84

Finding the Fourth Proportional to 18,891.36, 28,333.08 and 5,739.84

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Solution

The fourth proportional to 18,891.36, 28,333.08 and 5,739.84 is: 8,608.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.36 : 28,333.08 = 5,739.84 : x
  2. Step 2: Convert to fraction form
    18,891.36/28,333.08 = 5,739.84/x
  3. Step 3: Cross multiply
    18,891.36x = 28,333.08 × 5,739.84
  4. Step 4: Simplify right side
    18,891.36x = 162,627,345.91
  5. Step 5: Solve for x
    x = 162,627,345.91/18,891.36
  6. Step 6: Final answer
    x = 8,608.56

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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.