Home / 12,081.48-18,127.43-6,538.73

Finding the Fourth Proportional to 12,081.48, 18,127.43 and 6,538.73

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Solution

The fourth proportional to 12,081.48, 18,127.43 and 6,538.73 is: 9,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.48 : 18,127.43 = 6,538.73 : x
  2. Step 2: Convert to fraction form
    12,081.48/18,127.43 = 6,538.73/x
  3. Step 3: Cross multiply
    12,081.48x = 18,127.43 × 6,538.73
  4. Step 4: Simplify right side
    12,081.48x = 118,530,370.36
  5. Step 5: Solve for x
    x = 118,530,370.36/12,081.48
  6. Step 6: Final answer
    x = 9,810.91

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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.