Home / 18,429.62-27,655.14-7,755.19

Finding the Fourth Proportional to 18,429.62, 27,655.14 and 7,755.19

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Solution

The fourth proportional to 18,429.62, 27,655.14 and 7,755.19 is: 11,637.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.62 : 27,655.14 = 7,755.19 : x
  2. Step 2: Convert to fraction form
    18,429.62/27,655.14 = 7,755.19/x
  3. Step 3: Cross multiply
    18,429.62x = 27,655.14 × 7,755.19
  4. Step 4: Simplify right side
    18,429.62x = 214,470,826.40
  5. Step 5: Solve for x
    x = 214,470,826.40/18,429.62
  6. Step 6: Final answer
    x = 11,637.29

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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.