Home / 18,143.42-27,218.21-5,663.16

Finding the Fourth Proportional to 18,143.42, 27,218.21 and 5,663.16

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Solution

The fourth proportional to 18,143.42, 27,218.21 and 5,663.16 is: 8,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.42 : 27,218.21 = 5,663.16 : x
  2. Step 2: Convert to fraction form
    18,143.42/27,218.21 = 5,663.16/x
  3. Step 3: Cross multiply
    18,143.42x = 27,218.21 × 5,663.16
  4. Step 4: Simplify right side
    18,143.42x = 154,141,049.83
  5. Step 5: Solve for x
    x = 154,141,049.83/18,143.42
  6. Step 6: Final answer
    x = 8,495.70

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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.