Home / 18,418.80-27,615.90-5,764.27

Finding the Fourth Proportional to 18,418.80, 27,615.90 and 5,764.27

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Solution

The fourth proportional to 18,418.80, 27,615.90 and 5,764.27 is: 8,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.80 : 27,615.90 = 5,764.27 : x
  2. Step 2: Convert to fraction form
    18,418.80/27,615.90 = 5,764.27/x
  3. Step 3: Cross multiply
    18,418.80x = 27,615.90 × 5,764.27
  4. Step 4: Simplify right side
    18,418.80x = 159,185,503.89
  5. Step 5: Solve for x
    x = 159,185,503.89/18,418.80
  6. Step 6: Final answer
    x = 8,642.56

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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.