Home / 8,770.22-12,102.80-4,791.50

Finding the Fourth Proportional to 8,770.22, 12,102.80 and 4,791.50

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Solution

The fourth proportional to 8,770.22, 12,102.80 and 4,791.50 is: 6,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.22 : 12,102.80 = 4,791.50 : x
  2. Step 2: Convert to fraction form
    8,770.22/12,102.80 = 4,791.50/x
  3. Step 3: Cross multiply
    8,770.22x = 12,102.80 × 4,791.50
  4. Step 4: Simplify right side
    8,770.22x = 57,990,481.73
  5. Step 5: Solve for x
    x = 57,990,481.73/8,770.22
  6. Step 6: Final answer
    x = 6,612.21

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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.