Home / 12,711.29-19,072.16-5,591.86

Finding the Fourth Proportional to 12,711.29, 19,072.16 and 5,591.86

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Solution

The fourth proportional to 12,711.29, 19,072.16 and 5,591.86 is: 8,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.29 : 19,072.16 = 5,591.86 : x
  2. Step 2: Convert to fraction form
    12,711.29/19,072.16 = 5,591.86/x
  3. Step 3: Cross multiply
    12,711.29x = 19,072.16 × 5,591.86
  4. Step 4: Simplify right side
    12,711.29x = 106,648,848.62
  5. Step 5: Solve for x
    x = 106,648,848.62/12,711.29
  6. Step 6: Final answer
    x = 8,390.09

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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.