Home / 18,190.52-25,106.37-11,387.71

Finding the Fourth Proportional to 18,190.52, 25,106.37 and 11,387.71

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Solution

The fourth proportional to 18,190.52, 25,106.37 and 11,387.71 is: 15,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.52 : 25,106.37 = 11,387.71 : x
  2. Step 2: Convert to fraction form
    18,190.52/25,106.37 = 11,387.71/x
  3. Step 3: Cross multiply
    18,190.52x = 25,106.37 × 11,387.71
  4. Step 4: Simplify right side
    18,190.52x = 285,903,997.95
  5. Step 5: Solve for x
    x = 285,903,997.95/18,190.52
  6. Step 6: Final answer
    x = 15,717.20

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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.