Home / 18,238.67-25,156.86-11,168.58

Finding the Fourth Proportional to 18,238.67, 25,156.86 and 11,168.58

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Solution

The fourth proportional to 18,238.67, 25,156.86 and 11,168.58 is: 15,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.67 : 25,156.86 = 11,168.58 : x
  2. Step 2: Convert to fraction form
    18,238.67/25,156.86 = 11,168.58/x
  3. Step 3: Cross multiply
    18,238.67x = 25,156.86 × 11,168.58
  4. Step 4: Simplify right side
    18,238.67x = 280,966,403.46
  5. Step 5: Solve for x
    x = 280,966,403.46/18,238.67
  6. Step 6: Final answer
    x = 15,404.99

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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.