Home / 18,238.28-27,327.42-7,699.64

Finding the Fourth Proportional to 18,238.28, 27,327.42 and 7,699.64

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Solution

The fourth proportional to 18,238.28, 27,327.42 and 7,699.64 is: 11,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.28 : 27,327.42 = 7,699.64 : x
  2. Step 2: Convert to fraction form
    18,238.28/27,327.42 = 7,699.64/x
  3. Step 3: Cross multiply
    18,238.28x = 27,327.42 × 7,699.64
  4. Step 4: Simplify right side
    18,238.28x = 210,411,296.13
  5. Step 5: Solve for x
    x = 210,411,296.13/18,238.28
  6. Step 6: Final answer
    x = 11,536.79

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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.