Home / 18,753.27-25,890.74-11,689.26

Finding the Fourth Proportional to 18,753.27, 25,890.74 and 11,689.26

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Solution

The fourth proportional to 18,753.27, 25,890.74 and 11,689.26 is: 16,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.27 : 25,890.74 = 11,689.26 : x
  2. Step 2: Convert to fraction form
    18,753.27/25,890.74 = 11,689.26/x
  3. Step 3: Cross multiply
    18,753.27x = 25,890.74 × 11,689.26
  4. Step 4: Simplify right side
    18,753.27x = 302,643,403.55
  5. Step 5: Solve for x
    x = 302,643,403.55/18,753.27
  6. Step 6: Final answer
    x = 16,138.17

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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.