Home / 18,287.54-27,375.66-11,718.38

Finding the Fourth Proportional to 18,287.54, 27,375.66 and 11,718.38

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Solution

The fourth proportional to 18,287.54, 27,375.66 and 11,718.38 is: 17,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.54 : 27,375.66 = 11,718.38 : x
  2. Step 2: Convert to fraction form
    18,287.54/27,375.66 = 11,718.38/x
  3. Step 3: Cross multiply
    18,287.54x = 27,375.66 × 11,718.38
  4. Step 4: Simplify right side
    18,287.54x = 320,798,386.63
  5. Step 5: Solve for x
    x = 320,798,386.63/18,287.54
  6. Step 6: Final answer
    x = 17,541.91

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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.