Home / 8,718.89-13,083.84-3,172.62

Finding the Fourth Proportional to 8,718.89, 13,083.84 and 3,172.62

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Solution

The fourth proportional to 8,718.89, 13,083.84 and 3,172.62 is: 4,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.89 : 13,083.84 = 3,172.62 : x
  2. Step 2: Convert to fraction form
    8,718.89/13,083.84 = 3,172.62/x
  3. Step 3: Cross multiply
    8,718.89x = 13,083.84 × 3,172.62
  4. Step 4: Simplify right side
    8,718.89x = 41,510,052.46
  5. Step 5: Solve for x
    x = 41,510,052.46/8,718.89
  6. Step 6: Final answer
    x = 4,760.93

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1.5x scale

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.