Home / 18,145.54-27,218.31-5,666.63

Finding the Fourth Proportional to 18,145.54, 27,218.31 and 5,666.63

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Solution

The fourth proportional to 18,145.54, 27,218.31 and 5,666.63 is: 8,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.54 : 27,218.31 = 5,666.63 : x
  2. Step 2: Convert to fraction form
    18,145.54/27,218.31 = 5,666.63/x
  3. Step 3: Cross multiply
    18,145.54x = 27,218.31 × 5,666.63
  4. Step 4: Simplify right side
    18,145.54x = 154,236,092.00
  5. Step 5: Solve for x
    x = 154,236,092.00/18,145.54
  6. Step 6: Final answer
    x = 8,499.95

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Double scale
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Similar ratio
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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.