Home / 15,218.38-21,001.61-8,504.44

Finding the Fourth Proportional to 15,218.38, 21,001.61 and 8,504.44

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Solution

The fourth proportional to 15,218.38, 21,001.61 and 8,504.44 is: 11,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.38 : 21,001.61 = 8,504.44 : x
  2. Step 2: Convert to fraction form
    15,218.38/21,001.61 = 8,504.44/x
  3. Step 3: Cross multiply
    15,218.38x = 21,001.61 × 8,504.44
  4. Step 4: Simplify right side
    15,218.38x = 178,606,907.74
  5. Step 5: Solve for x
    x = 178,606,907.74/15,218.38
  6. Step 6: Final answer
    x = 11,736.26

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Double scale
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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.