Home / 8,310.78-12,459.08-3,627.28

Finding the Fourth Proportional to 8,310.78, 12,459.08 and 3,627.28

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Solution

The fourth proportional to 8,310.78, 12,459.08 and 3,627.28 is: 5,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.78 : 12,459.08 = 3,627.28 : x
  2. Step 2: Convert to fraction form
    8,310.78/12,459.08 = 3,627.28/x
  3. Step 3: Cross multiply
    8,310.78x = 12,459.08 × 3,627.28
  4. Step 4: Simplify right side
    8,310.78x = 45,192,597.88
  5. Step 5: Solve for x
    x = 45,192,597.88/8,310.78
  6. Step 6: Final answer
    x = 5,437.83

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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.