Home / 18,412.03-27,634.49-12,869.81

Finding the Fourth Proportional to 18,412.03, 27,634.49 and 12,869.81

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Solution

The fourth proportional to 18,412.03, 27,634.49 and 12,869.81 is: 19,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.03 : 27,634.49 = 12,869.81 : x
  2. Step 2: Convert to fraction form
    18,412.03/27,634.49 = 12,869.81/x
  3. Step 3: Cross multiply
    18,412.03x = 27,634.49 × 12,869.81
  4. Step 4: Simplify right side
    18,412.03x = 355,650,699.03
  5. Step 5: Solve for x
    x = 355,650,699.03/18,412.03
  6. Step 6: Final answer
    x = 19,316.21

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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.