Home / 13,711.07-20,568.77-5,813.61

Finding the Fourth Proportional to 13,711.07, 20,568.77 and 5,813.61

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Solution

The fourth proportional to 13,711.07, 20,568.77 and 5,813.61 is: 8,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.07 : 20,568.77 = 5,813.61 : x
  2. Step 2: Convert to fraction form
    13,711.07/20,568.77 = 5,813.61/x
  3. Step 3: Cross multiply
    13,711.07x = 20,568.77 × 5,813.61
  4. Step 4: Simplify right side
    13,711.07x = 119,578,777.89
  5. Step 5: Solve for x
    x = 119,578,777.89/13,711.07
  6. Step 6: Final answer
    x = 8,721.33

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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.