Home / 18,185.13-25,089.64-11,012.74

Finding the Fourth Proportional to 18,185.13, 25,089.64 and 11,012.74

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Solution

The fourth proportional to 18,185.13, 25,089.64 and 11,012.74 is: 15,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.13 : 25,089.64 = 11,012.74 : x
  2. Step 2: Convert to fraction form
    18,185.13/25,089.64 = 11,012.74/x
  3. Step 3: Cross multiply
    18,185.13x = 25,089.64 × 11,012.74
  4. Step 4: Simplify right side
    18,185.13x = 276,305,591.76
  5. Step 5: Solve for x
    x = 276,305,591.76/18,185.13
  6. Step 6: Final answer
    x = 15,194.04

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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.