Home / 18,239.86-25,154.22-11,513.86

Finding the Fourth Proportional to 18,239.86, 25,154.22 and 11,513.86

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Solution

The fourth proportional to 18,239.86, 25,154.22 and 11,513.86 is: 15,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.86 : 25,154.22 = 11,513.86 : x
  2. Step 2: Convert to fraction form
    18,239.86/25,154.22 = 11,513.86/x
  3. Step 3: Cross multiply
    18,239.86x = 25,154.22 × 11,513.86
  4. Step 4: Simplify right side
    18,239.86x = 289,622,167.49
  5. Step 5: Solve for x
    x = 289,622,167.49/18,239.86
  6. Step 6: Final answer
    x = 15,878.53

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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.