Home / 18,537.48-27,811.89-5,389.97

Finding the Fourth Proportional to 18,537.48, 27,811.89 and 5,389.97

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Solution

The fourth proportional to 18,537.48, 27,811.89 and 5,389.97 is: 8,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.48 : 27,811.89 = 5,389.97 : x
  2. Step 2: Convert to fraction form
    18,537.48/27,811.89 = 5,389.97/x
  3. Step 3: Cross multiply
    18,537.48x = 27,811.89 × 5,389.97
  4. Step 4: Simplify right side
    18,537.48x = 149,905,113.68
  5. Step 5: Solve for x
    x = 149,905,113.68/18,537.48
  6. Step 6: Final answer
    x = 8,086.60

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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.