Home / 12,800.25-19,202.81-5,874.75

Finding the Fourth Proportional to 12,800.25, 19,202.81 and 5,874.75

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Solution

The fourth proportional to 12,800.25, 19,202.81 and 5,874.75 is: 8,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.25 : 19,202.81 = 5,874.75 : x
  2. Step 2: Convert to fraction form
    12,800.25/19,202.81 = 5,874.75/x
  3. Step 3: Cross multiply
    12,800.25x = 19,202.81 × 5,874.75
  4. Step 4: Simplify right side
    12,800.25x = 112,811,678.67
  5. Step 5: Solve for x
    x = 112,811,678.67/12,800.25
  6. Step 6: Final answer
    x = 8,813.24

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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.