Home / 18,171.95-25,072.81-11,095.79

Finding the Fourth Proportional to 18,171.95, 25,072.81 and 11,095.79

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Solution

The fourth proportional to 18,171.95, 25,072.81 and 11,095.79 is: 15,309.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.95 : 25,072.81 = 11,095.79 : x
  2. Step 2: Convert to fraction form
    18,171.95/25,072.81 = 11,095.79/x
  3. Step 3: Cross multiply
    18,171.95x = 25,072.81 × 11,095.79
  4. Step 4: Simplify right side
    18,171.95x = 278,202,634.47
  5. Step 5: Solve for x
    x = 278,202,634.47/18,171.95
  6. Step 6: Final answer
    x = 15,309.45

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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.