Home / 8,770.37-12,103.40-4,791.78

Finding the Fourth Proportional to 8,770.37, 12,103.40 and 4,791.78

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Solution

The fourth proportional to 8,770.37, 12,103.40 and 4,791.78 is: 6,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.37 : 12,103.40 = 4,791.78 : x
  2. Step 2: Convert to fraction form
    8,770.37/12,103.40 = 4,791.78/x
  3. Step 3: Cross multiply
    8,770.37x = 12,103.40 × 4,791.78
  4. Step 4: Simplify right side
    8,770.37x = 57,996,842.03
  5. Step 5: Solve for x
    x = 57,996,842.03/8,770.37
  6. Step 6: Final answer
    x = 6,612.82

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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.