Home / 18,932.49-28,400.28-7,837.11

Finding the Fourth Proportional to 18,932.49, 28,400.28 and 7,837.11

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Solution

The fourth proportional to 18,932.49, 28,400.28 and 7,837.11 is: 11,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.49 : 28,400.28 = 7,837.11 : x
  2. Step 2: Convert to fraction form
    18,932.49/28,400.28 = 7,837.11/x
  3. Step 3: Cross multiply
    18,932.49x = 28,400.28 × 7,837.11
  4. Step 4: Simplify right side
    18,932.49x = 222,576,118.39
  5. Step 5: Solve for x
    x = 222,576,118.39/18,932.49
  6. Step 6: Final answer
    x = 11,756.30

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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.