Home / 18,666.56-27,999.66-5,519.18

Finding the Fourth Proportional to 18,666.56, 27,999.66 and 5,519.18

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Solution

The fourth proportional to 18,666.56, 27,999.66 and 5,519.18 is: 8,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.56 : 27,999.66 = 5,519.18 : x
  2. Step 2: Convert to fraction form
    18,666.56/27,999.66 = 5,519.18/x
  3. Step 3: Cross multiply
    18,666.56x = 27,999.66 × 5,519.18
  4. Step 4: Simplify right side
    18,666.56x = 154,535,163.48
  5. Step 5: Solve for x
    x = 154,535,163.48/18,666.56
  6. Step 6: Final answer
    x = 8,278.72

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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.