Home / 9,296.40-13,930.20-7,827.60

Finding the Fourth Proportional to 9,296.40, 13,930.20 and 7,827.60

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Solution

The fourth proportional to 9,296.40, 13,930.20 and 7,827.60 is: 11,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,296.40 : 13,930.20 = 7,827.60 : x
  2. Step 2: Convert to fraction form
    9,296.40/13,930.20 = 7,827.60/x
  3. Step 3: Cross multiply
    9,296.40x = 13,930.20 × 7,827.60
  4. Step 4: Simplify right side
    9,296.40x = 109,040,033.52
  5. Step 5: Solve for x
    x = 109,040,033.52/9,296.40
  6. Step 6: Final answer
    x = 11,729.28

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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.