Home / 18,128.22-27,186.57-12,322.14

Finding the Fourth Proportional to 18,128.22, 27,186.57 and 12,322.14

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Solution

The fourth proportional to 18,128.22, 27,186.57 and 12,322.14 is: 18,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.22 : 27,186.57 = 12,322.14 : x
  2. Step 2: Convert to fraction form
    18,128.22/27,186.57 = 12,322.14/x
  3. Step 3: Cross multiply
    18,128.22x = 27,186.57 × 12,322.14
  4. Step 4: Simplify right side
    18,128.22x = 334,996,721.66
  5. Step 5: Solve for x
    x = 334,996,721.66/18,128.22
  6. Step 6: Final answer
    x = 18,479.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.