Home / 9,811.94-13,539.78-5,335.61

Finding the Fourth Proportional to 9,811.94, 13,539.78 and 5,335.61

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Solution

The fourth proportional to 9,811.94, 13,539.78 and 5,335.61 is: 7,362.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.94 : 13,539.78 = 5,335.61 : x
  2. Step 2: Convert to fraction form
    9,811.94/13,539.78 = 5,335.61/x
  3. Step 3: Cross multiply
    9,811.94x = 13,539.78 × 5,335.61
  4. Step 4: Simplify right side
    9,811.94x = 72,242,917.87
  5. Step 5: Solve for x
    x = 72,242,917.87/9,811.94
  6. Step 6: Final answer
    x = 7,362.76

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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.