Home / 18,740.39-25,858.62-11,189.77

Finding the Fourth Proportional to 18,740.39, 25,858.62 and 11,189.77

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Solution

The fourth proportional to 18,740.39, 25,858.62 and 11,189.77 is: 15,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.39 : 25,858.62 = 11,189.77 : x
  2. Step 2: Convert to fraction form
    18,740.39/25,858.62 = 11,189.77/x
  3. Step 3: Cross multiply
    18,740.39x = 25,858.62 × 11,189.77
  4. Step 4: Simplify right side
    18,740.39x = 289,352,010.32
  5. Step 5: Solve for x
    x = 289,352,010.32/18,740.39
  6. Step 6: Final answer
    x = 15,440.02

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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.