Home / 12,081.87-18,125.67-5,057.97

Finding the Fourth Proportional to 12,081.87, 18,125.67 and 5,057.97

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Solution

The fourth proportional to 12,081.87, 18,125.67 and 5,057.97 is: 7,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.87 : 18,125.67 = 5,057.97 : x
  2. Step 2: Convert to fraction form
    12,081.87/18,125.67 = 5,057.97/x
  3. Step 3: Cross multiply
    12,081.87x = 18,125.67 × 5,057.97
  4. Step 4: Simplify right side
    12,081.87x = 91,679,095.09
  5. Step 5: Solve for x
    x = 91,679,095.09/12,081.87
  6. Step 6: Final answer
    x = 7,588.15

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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.