Home / 18,180.60-27,285.47-9,418.02

Finding the Fourth Proportional to 18,180.60, 27,285.47 and 9,418.02

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Solution

The fourth proportional to 18,180.60, 27,285.47 and 9,418.02 is: 14,134.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.60 : 27,285.47 = 9,418.02 : x
  2. Step 2: Convert to fraction form
    18,180.60/27,285.47 = 9,418.02/x
  3. Step 3: Cross multiply
    18,180.60x = 27,285.47 × 9,418.02
  4. Step 4: Simplify right side
    18,180.60x = 256,975,055.08
  5. Step 5: Solve for x
    x = 256,975,055.08/18,180.60
  6. Step 6: Final answer
    x = 14,134.58

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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.