Home / 8,279.46-12,401.55-6,627.06

Finding the Fourth Proportional to 8,279.46, 12,401.55 and 6,627.06

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Solution

The fourth proportional to 8,279.46, 12,401.55 and 6,627.06 is: 9,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.46 : 12,401.55 = 6,627.06 : x
  2. Step 2: Convert to fraction form
    8,279.46/12,401.55 = 6,627.06/x
  3. Step 3: Cross multiply
    8,279.46x = 12,401.55 × 6,627.06
  4. Step 4: Simplify right side
    8,279.46x = 82,185,815.94
  5. Step 5: Solve for x
    x = 82,185,815.94/8,279.46
  6. Step 6: Final answer
    x = 9,926.47

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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.