Home / 18,218.39-25,139.77-10,151.73

Finding the Fourth Proportional to 18,218.39, 25,139.77 and 10,151.73

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Solution

The fourth proportional to 18,218.39, 25,139.77 and 10,151.73 is: 14,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.39 : 25,139.77 = 10,151.73 : x
  2. Step 2: Convert to fraction form
    18,218.39/25,139.77 = 10,151.73/x
  3. Step 3: Cross multiply
    18,218.39x = 25,139.77 × 10,151.73
  4. Step 4: Simplify right side
    18,218.39x = 255,212,131.92
  5. Step 5: Solve for x
    x = 255,212,131.92/18,218.39
  6. Step 6: Final answer
    x = 14,008.49

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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.