Home / 8,718.38-13,077.72-3,788.02

Finding the Fourth Proportional to 8,718.38, 13,077.72 and 3,788.02

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Solution

The fourth proportional to 8,718.38, 13,077.72 and 3,788.02 is: 5,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.38 : 13,077.72 = 3,788.02 : x
  2. Step 2: Convert to fraction form
    8,718.38/13,077.72 = 3,788.02/x
  3. Step 3: Cross multiply
    8,718.38x = 13,077.72 × 3,788.02
  4. Step 4: Simplify right side
    8,718.38x = 49,538,664.91
  5. Step 5: Solve for x
    x = 49,538,664.91/8,718.38
  6. Step 6: Final answer
    x = 5,682.10

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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.