Home / 18,185.63-25,096.59-11,115.95

Finding the Fourth Proportional to 18,185.63, 25,096.59 and 11,115.95

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Solution

The fourth proportional to 18,185.63, 25,096.59 and 11,115.95 is: 15,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.63 : 25,096.59 = 11,115.95 : x
  2. Step 2: Convert to fraction form
    18,185.63/25,096.59 = 11,115.95/x
  3. Step 3: Cross multiply
    18,185.63x = 25,096.59 × 11,115.95
  4. Step 4: Simplify right side
    18,185.63x = 278,972,314.13
  5. Step 5: Solve for x
    x = 278,972,314.13/18,185.63
  6. Step 6: Final answer
    x = 15,340.27

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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.