Home / 13,717.65-20,568.77-4,355.92

Finding the Fourth Proportional to 13,717.65, 20,568.77 and 4,355.92

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Solution

The fourth proportional to 13,717.65, 20,568.77 and 4,355.92 is: 6,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.65 : 20,568.77 = 4,355.92 : x
  2. Step 2: Convert to fraction form
    13,717.65/20,568.77 = 4,355.92/x
  3. Step 3: Cross multiply
    13,717.65x = 20,568.77 × 4,355.92
  4. Step 4: Simplify right side
    13,717.65x = 89,595,916.62
  5. Step 5: Solve for x
    x = 89,595,916.62/13,717.65
  6. Step 6: Final answer
    x = 6,531.43

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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.