Home / 18,936.80-26,132.64-10,983.52

Finding the Fourth Proportional to 18,936.80, 26,132.64 and 10,983.52

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Solution

The fourth proportional to 18,936.80, 26,132.64 and 10,983.52 is: 15,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.80 : 26,132.64 = 10,983.52 : x
  2. Step 2: Convert to fraction form
    18,936.80/26,132.64 = 10,983.52/x
  3. Step 3: Cross multiply
    18,936.80x = 26,132.64 × 10,983.52
  4. Step 4: Simplify right side
    18,936.80x = 287,028,374.09
  5. Step 5: Solve for x
    x = 287,028,374.09/18,936.80
  6. Step 6: Final answer
    x = 15,157.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.