Home / 18,143.63-27,216.46-5,665.38

Finding the Fourth Proportional to 18,143.63, 27,216.46 and 5,665.38

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Solution

The fourth proportional to 18,143.63, 27,216.46 and 5,665.38 is: 8,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.63 : 27,216.46 = 5,665.38 : x
  2. Step 2: Convert to fraction form
    18,143.63/27,216.46 = 5,665.38/x
  3. Step 3: Cross multiply
    18,143.63x = 27,216.46 × 5,665.38
  4. Step 4: Simplify right side
    18,143.63x = 154,191,588.15
  5. Step 5: Solve for x
    x = 154,191,588.15/18,143.63
  6. Step 6: Final answer
    x = 8,498.39

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1.5x scale

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.