Home / 18,086.78-27,131.85-5,606.90

Finding the Fourth Proportional to 18,086.78, 27,131.85 and 5,606.90

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Solution

The fourth proportional to 18,086.78, 27,131.85 and 5,606.90 is: 8,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.78 : 27,131.85 = 5,606.90 : x
  2. Step 2: Convert to fraction form
    18,086.78/27,131.85 = 5,606.90/x
  3. Step 3: Cross multiply
    18,086.78x = 27,131.85 × 5,606.90
  4. Step 4: Simplify right side
    18,086.78x = 152,125,569.77
  5. Step 5: Solve for x
    x = 152,125,569.77/18,086.78
  6. Step 6: Final answer
    x = 8,410.87

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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.