Home / 13,911.54-20,864.49-4,551.85

Finding the Fourth Proportional to 13,911.54, 20,864.49 and 4,551.85

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Solution

The fourth proportional to 13,911.54, 20,864.49 and 4,551.85 is: 6,826.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.54 : 20,864.49 = 4,551.85 : x
  2. Step 2: Convert to fraction form
    13,911.54/20,864.49 = 4,551.85/x
  3. Step 3: Cross multiply
    13,911.54x = 20,864.49 × 4,551.85
  4. Step 4: Simplify right side
    13,911.54x = 94,972,028.81
  5. Step 5: Solve for x
    x = 94,972,028.81/13,911.54
  6. Step 6: Final answer
    x = 6,826.85

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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.