Home / 18,514.31-27,736.59-9,143.36

Finding the Fourth Proportional to 18,514.31, 27,736.59 and 9,143.36

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Solution

The fourth proportional to 18,514.31, 27,736.59 and 9,143.36 is: 13,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.31 : 27,736.59 = 9,143.36 : x
  2. Step 2: Convert to fraction form
    18,514.31/27,736.59 = 9,143.36/x
  3. Step 3: Cross multiply
    18,514.31x = 27,736.59 × 9,143.36
  4. Step 4: Simplify right side
    18,514.31x = 253,605,627.54
  5. Step 5: Solve for x
    x = 253,605,627.54/18,514.31
  6. Step 6: Final answer
    x = 13,697.82

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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.