Home / 9,363.75-12,922.11-5,172

Finding the Fourth Proportional to 9,363.75, 12,922.11 and 5,172

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Solution

The fourth proportional to 9,363.75, 12,922.11 and 5,172 is: 7,137.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.75 : 12,922.11 = 5,172 : x
  2. Step 2: Convert to fraction form
    9,363.75/12,922.11 = 5,172/x
  3. Step 3: Cross multiply
    9,363.75x = 12,922.11 × 5,172
  4. Step 4: Simplify right side
    9,363.75x = 66,833,152.92
  5. Step 5: Solve for x
    x = 66,833,152.92/9,363.75
  6. Step 6: Final answer
    x = 7,137.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.