Home / 18,149.07-25,054.14-12,109.35

Finding the Fourth Proportional to 18,149.07, 25,054.14 and 12,109.35

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Solution

The fourth proportional to 18,149.07, 25,054.14 and 12,109.35 is: 16,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.07 : 25,054.14 = 12,109.35 : x
  2. Step 2: Convert to fraction form
    18,149.07/25,054.14 = 12,109.35/x
  3. Step 3: Cross multiply
    18,149.07x = 25,054.14 × 12,109.35
  4. Step 4: Simplify right side
    18,149.07x = 303,389,350.21
  5. Step 5: Solve for x
    x = 303,389,350.21/18,149.07
  6. Step 6: Final answer
    x = 16,716.52

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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.