Home / 8,185.60-12,254.10-7,310.80

Finding the Fourth Proportional to 8,185.60, 12,254.10 and 7,310.80

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Solution

The fourth proportional to 8,185.60, 12,254.10 and 7,310.80 is: 10,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.60 : 12,254.10 = 7,310.80 : x
  2. Step 2: Convert to fraction form
    8,185.60/12,254.10 = 7,310.80/x
  3. Step 3: Cross multiply
    8,185.60x = 12,254.10 × 7,310.80
  4. Step 4: Simplify right side
    8,185.60x = 89,587,274.28
  5. Step 5: Solve for x
    x = 89,587,274.28/8,185.60
  6. Step 6: Final answer
    x = 10,944.50

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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.