Home / 18,129.48-27,198.80-8,773.98

Finding the Fourth Proportional to 18,129.48, 27,198.80 and 8,773.98

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Solution

The fourth proportional to 18,129.48, 27,198.80 and 8,773.98 is: 13,163.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.48 : 27,198.80 = 8,773.98 : x
  2. Step 2: Convert to fraction form
    18,129.48/27,198.80 = 8,773.98/x
  3. Step 3: Cross multiply
    18,129.48x = 27,198.80 × 8,773.98
  4. Step 4: Simplify right side
    18,129.48x = 238,641,727.22
  5. Step 5: Solve for x
    x = 238,641,727.22/18,129.48
  6. Step 6: Final answer
    x = 13,163.19

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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.