Home / 11,977.86-17,966.17-4,581.75

Finding the Fourth Proportional to 11,977.86, 17,966.17 and 4,581.75

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Solution

The fourth proportional to 11,977.86, 17,966.17 and 4,581.75 is: 6,872.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.86 : 17,966.17 = 4,581.75 : x
  2. Step 2: Convert to fraction form
    11,977.86/17,966.17 = 4,581.75/x
  3. Step 3: Cross multiply
    11,977.86x = 17,966.17 × 4,581.75
  4. Step 4: Simplify right side
    11,977.86x = 82,316,499.40
  5. Step 5: Solve for x
    x = 82,316,499.40/11,977.86
  6. Step 6: Final answer
    x = 6,872.39

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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.