Home / 8,770.06-12,102.48-4,791.28

Finding the Fourth Proportional to 8,770.06, 12,102.48 and 4,791.28

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Solution

The fourth proportional to 8,770.06, 12,102.48 and 4,791.28 is: 6,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.06 : 12,102.48 = 4,791.28 : x
  2. Step 2: Convert to fraction form
    8,770.06/12,102.48 = 4,791.28/x
  3. Step 3: Cross multiply
    8,770.06x = 12,102.48 × 4,791.28
  4. Step 4: Simplify right side
    8,770.06x = 57,986,370.37
  5. Step 5: Solve for x
    x = 57,986,370.37/8,770.06
  6. Step 6: Final answer
    x = 6,611.86

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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.