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Finding the Fourth Proportional to 8,508.32, 12,747.88 and 6,758.72

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Solution

The fourth proportional to 8,508.32, 12,747.88 and 6,758.72 is: 10,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.32 : 12,747.88 = 6,758.72 : x
  2. Step 2: Convert to fraction form
    8,508.32/12,747.88 = 6,758.72/x
  3. Step 3: Cross multiply
    8,508.32x = 12,747.88 × 6,758.72
  4. Step 4: Simplify right side
    8,508.32x = 86,159,351.51
  5. Step 5: Solve for x
    x = 86,159,351.51/8,508.32
  6. Step 6: Final answer
    x = 10,126.48

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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.