Home / 18,563.45-27,844.71-5,415.93

Finding the Fourth Proportional to 18,563.45, 27,844.71 and 5,415.93

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Solution

The fourth proportional to 18,563.45, 27,844.71 and 5,415.93 is: 8,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.45 : 27,844.71 = 5,415.93 : x
  2. Step 2: Convert to fraction form
    18,563.45/27,844.71 = 5,415.93/x
  3. Step 3: Cross multiply
    18,563.45x = 27,844.71 × 5,415.93
  4. Step 4: Simplify right side
    18,563.45x = 150,805,088.70
  5. Step 5: Solve for x
    x = 150,805,088.70/18,563.45
  6. Step 6: Final answer
    x = 8,123.77

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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.