Home / 12,134.16-18,202.96-11,917.12

Finding the Fourth Proportional to 12,134.16, 18,202.96 and 11,917.12

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Solution

The fourth proportional to 12,134.16, 18,202.96 and 11,917.12 is: 17,877.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.16 : 18,202.96 = 11,917.12 : x
  2. Step 2: Convert to fraction form
    12,134.16/18,202.96 = 11,917.12/x
  3. Step 3: Cross multiply
    12,134.16x = 18,202.96 × 11,917.12
  4. Step 4: Simplify right side
    12,134.16x = 216,926,858.68
  5. Step 5: Solve for x
    x = 216,926,858.68/12,134.16
  6. Step 6: Final answer
    x = 17,877.37

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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.