Home / 11,885.11-17,828.08-5,641.91

Finding the Fourth Proportional to 11,885.11, 17,828.08 and 5,641.91

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Solution

The fourth proportional to 11,885.11, 17,828.08 and 5,641.91 is: 8,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.11 : 17,828.08 = 5,641.91 : x
  2. Step 2: Convert to fraction form
    11,885.11/17,828.08 = 5,641.91/x
  3. Step 3: Cross multiply
    11,885.11x = 17,828.08 × 5,641.91
  4. Step 4: Simplify right side
    11,885.11x = 100,584,418.18
  5. Step 5: Solve for x
    x = 100,584,418.18/11,885.11
  6. Step 6: Final answer
    x = 8,463.06

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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.