Home / 18,159.36-27,216.24-7,758.88

Finding the Fourth Proportional to 18,159.36, 27,216.24 and 7,758.88

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Solution

The fourth proportional to 18,159.36, 27,216.24 and 7,758.88 is: 11,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.36 : 27,216.24 = 7,758.88 : x
  2. Step 2: Convert to fraction form
    18,159.36/27,216.24 = 7,758.88/x
  3. Step 3: Cross multiply
    18,159.36x = 27,216.24 × 7,758.88
  4. Step 4: Simplify right side
    18,159.36x = 211,167,540.21
  5. Step 5: Solve for x
    x = 211,167,540.21/18,159.36
  6. Step 6: Final answer
    x = 11,628.58

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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.