Home / 8,770.89-12,103.68-4,791.93

Finding the Fourth Proportional to 8,770.89, 12,103.68 and 4,791.93

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Solution

The fourth proportional to 8,770.89, 12,103.68 and 4,791.93 is: 6,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.89 : 12,103.68 = 4,791.93 : x
  2. Step 2: Convert to fraction form
    8,770.89/12,103.68 = 4,791.93/x
  3. Step 3: Cross multiply
    8,770.89x = 12,103.68 × 4,791.93
  4. Step 4: Simplify right side
    8,770.89x = 57,999,987.30
  5. Step 5: Solve for x
    x = 57,999,987.30/8,770.89
  6. Step 6: Final answer
    x = 6,612.78

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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.