Home / 7,679.34-11,512.29-6,373.95

Finding the Fourth Proportional to 7,679.34, 11,512.29 and 6,373.95

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Solution

The fourth proportional to 7,679.34, 11,512.29 and 6,373.95 is: 9,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.34 : 11,512.29 = 6,373.95 : x
  2. Step 2: Convert to fraction form
    7,679.34/11,512.29 = 6,373.95/x
  3. Step 3: Cross multiply
    7,679.34x = 11,512.29 × 6,373.95
  4. Step 4: Simplify right side
    7,679.34x = 73,378,760.85
  5. Step 5: Solve for x
    x = 73,378,760.85/7,679.34
  6. Step 6: Final answer
    x = 9,555.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.