Home / 18,122.11-27,162.70-9,783.56

Finding the Fourth Proportional to 18,122.11, 27,162.70 and 9,783.56

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Solution

The fourth proportional to 18,122.11, 27,162.70 and 9,783.56 is: 14,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.11 : 27,162.70 = 9,783.56 : x
  2. Step 2: Convert to fraction form
    18,122.11/27,162.70 = 9,783.56/x
  3. Step 3: Cross multiply
    18,122.11x = 27,162.70 × 9,783.56
  4. Step 4: Simplify right side
    18,122.11x = 265,747,905.21
  5. Step 5: Solve for x
    x = 265,747,905.21/18,122.11
  6. Step 6: Final answer
    x = 14,664.29

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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.