Home / 18,753.66-25,880.94-11,682.36

Finding the Fourth Proportional to 18,753.66, 25,880.94 and 11,682.36

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Solution

The fourth proportional to 18,753.66, 25,880.94 and 11,682.36 is: 16,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.66 : 25,880.94 = 11,682.36 : x
  2. Step 2: Convert to fraction form
    18,753.66/25,880.94 = 11,682.36/x
  3. Step 3: Cross multiply
    18,753.66x = 25,880.94 × 11,682.36
  4. Step 4: Simplify right side
    18,753.66x = 302,350,458.22
  5. Step 5: Solve for x
    x = 302,350,458.22/18,753.66
  6. Step 6: Final answer
    x = 16,122.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.