Home / 13,718.72-20,568.72-6,599.21

Finding the Fourth Proportional to 13,718.72, 20,568.72 and 6,599.21

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Solution

The fourth proportional to 13,718.72, 20,568.72 and 6,599.21 is: 9,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.72 : 20,568.72 = 6,599.21 : x
  2. Step 2: Convert to fraction form
    13,718.72/20,568.72 = 6,599.21/x
  3. Step 3: Cross multiply
    13,718.72x = 20,568.72 × 6,599.21
  4. Step 4: Simplify right side
    13,718.72x = 135,737,199.87
  5. Step 5: Solve for x
    x = 135,737,199.87/13,718.72
  6. Step 6: Final answer
    x = 9,894.30

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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.