Home / 18,123.94-27,178.62-7,024.78

Finding the Fourth Proportional to 18,123.94, 27,178.62 and 7,024.78

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Solution

The fourth proportional to 18,123.94, 27,178.62 and 7,024.78 is: 10,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.94 : 27,178.62 = 7,024.78 : x
  2. Step 2: Convert to fraction form
    18,123.94/27,178.62 = 7,024.78/x
  3. Step 3: Cross multiply
    18,123.94x = 27,178.62 × 7,024.78
  4. Step 4: Simplify right side
    18,123.94x = 190,923,826.20
  5. Step 5: Solve for x
    x = 190,923,826.20/18,123.94
  6. Step 6: Final answer
    x = 10,534.34

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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.