Home / 18,442.19-27,663.30-7,905.38

Finding the Fourth Proportional to 18,442.19, 27,663.30 and 7,905.38

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Solution

The fourth proportional to 18,442.19, 27,663.30 and 7,905.38 is: 11,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.19 : 27,663.30 = 7,905.38 : x
  2. Step 2: Convert to fraction form
    18,442.19/27,663.30 = 7,905.38/x
  3. Step 3: Cross multiply
    18,442.19x = 27,663.30 × 7,905.38
  4. Step 4: Simplify right side
    18,442.19x = 218,688,760.24
  5. Step 5: Solve for x
    x = 218,688,760.24/18,442.19
  6. Step 6: Final answer
    x = 11,858.07

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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.