Home / 18,172.32-25,080.12-11,097.24

Finding the Fourth Proportional to 18,172.32, 25,080.12 and 11,097.24

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Solution

The fourth proportional to 18,172.32, 25,080.12 and 11,097.24 is: 15,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.32 : 25,080.12 = 11,097.24 : x
  2. Step 2: Convert to fraction form
    18,172.32/25,080.12 = 11,097.24/x
  3. Step 3: Cross multiply
    18,172.32x = 25,080.12 × 11,097.24
  4. Step 4: Simplify right side
    18,172.32x = 278,320,110.87
  5. Step 5: Solve for x
    x = 278,320,110.87/18,172.32
  6. Step 6: Final answer
    x = 15,315.61

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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.