Home / 11,938.45-17,910.68-4,538.87

Finding the Fourth Proportional to 11,938.45, 17,910.68 and 4,538.87

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Solution

The fourth proportional to 11,938.45, 17,910.68 and 4,538.87 is: 6,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.45 : 17,910.68 = 4,538.87 : x
  2. Step 2: Convert to fraction form
    11,938.45/17,910.68 = 4,538.87/x
  3. Step 3: Cross multiply
    11,938.45x = 17,910.68 × 4,538.87
  4. Step 4: Simplify right side
    11,938.45x = 81,294,248.13
  5. Step 5: Solve for x
    x = 81,294,248.13/11,938.45
  6. Step 6: Final answer
    x = 6,809.45

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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.