Home / 18,260.43-27,395.28-5,112.87

Finding the Fourth Proportional to 18,260.43, 27,395.28 and 5,112.87

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Solution

The fourth proportional to 18,260.43, 27,395.28 and 5,112.87 is: 7,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.43 : 27,395.28 = 5,112.87 : x
  2. Step 2: Convert to fraction form
    18,260.43/27,395.28 = 5,112.87/x
  3. Step 3: Cross multiply
    18,260.43x = 27,395.28 × 5,112.87
  4. Step 4: Simplify right side
    18,260.43x = 140,068,505.25
  5. Step 5: Solve for x
    x = 140,068,505.25/18,260.43
  6. Step 6: Final answer
    x = 7,670.60

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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.