Home / 9,355.76-12,910.56-5,163.92

Finding the Fourth Proportional to 9,355.76, 12,910.56 and 5,163.92

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Solution

The fourth proportional to 9,355.76, 12,910.56 and 5,163.92 is: 7,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.76 : 12,910.56 = 5,163.92 : x
  2. Step 2: Convert to fraction form
    9,355.76/12,910.56 = 5,163.92/x
  3. Step 3: Cross multiply
    9,355.76x = 12,910.56 × 5,163.92
  4. Step 4: Simplify right side
    9,355.76x = 66,669,099.00
  5. Step 5: Solve for x
    x = 66,669,099.00/9,355.76
  6. Step 6: Final answer
    x = 7,126.00

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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.