Home / 8,612.20-11,884.74-4,885.96

Finding the Fourth Proportional to 8,612.20, 11,884.74 and 4,885.96

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Solution

The fourth proportional to 8,612.20, 11,884.74 and 4,885.96 is: 6,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.20 : 11,884.74 = 4,885.96 : x
  2. Step 2: Convert to fraction form
    8,612.20/11,884.74 = 4,885.96/x
  3. Step 3: Cross multiply
    8,612.20x = 11,884.74 × 4,885.96
  4. Step 4: Simplify right side
    8,612.20x = 58,068,364.25
  5. Step 5: Solve for x
    x = 58,068,364.25/8,612.20
  6. Step 6: Final answer
    x = 6,742.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.