Home / 18,339.12-27,509.85-5,192.53

Finding the Fourth Proportional to 18,339.12, 27,509.85 and 5,192.53

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Solution

The fourth proportional to 18,339.12, 27,509.85 and 5,192.53 is: 7,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.12 : 27,509.85 = 5,192.53 : x
  2. Step 2: Convert to fraction form
    18,339.12/27,509.85 = 5,192.53/x
  3. Step 3: Cross multiply
    18,339.12x = 27,509.85 × 5,192.53
  4. Step 4: Simplify right side
    18,339.12x = 142,845,652.65
  5. Step 5: Solve for x
    x = 142,845,652.65/18,339.12
  6. Step 6: Final answer
    x = 7,789.12

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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.