Home / 8,718.12-13,078.08-2,792.93

Finding the Fourth Proportional to 8,718.12, 13,078.08 and 2,792.93

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Solution

The fourth proportional to 8,718.12, 13,078.08 and 2,792.93 is: 4,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.12 : 13,078.08 = 2,792.93 : x
  2. Step 2: Convert to fraction form
    8,718.12/13,078.08 = 2,792.93/x
  3. Step 3: Cross multiply
    8,718.12x = 13,078.08 × 2,792.93
  4. Step 4: Simplify right side
    8,718.12x = 36,526,096.58
  5. Step 5: Solve for x
    x = 36,526,096.58/8,718.12
  6. Step 6: Final answer
    x = 4,189.68

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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.