Home / 6,913.53-9,540.70-3,929.36

Finding the Fourth Proportional to 6,913.53, 9,540.70 and 3,929.36

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Solution

The fourth proportional to 6,913.53, 9,540.70 and 3,929.36 is: 5,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.53 : 9,540.70 = 3,929.36 : x
  2. Step 2: Convert to fraction form
    6,913.53/9,540.70 = 3,929.36/x
  3. Step 3: Cross multiply
    6,913.53x = 9,540.70 × 3,929.36
  4. Step 4: Simplify right side
    6,913.53x = 37,488,863.19
  5. Step 5: Solve for x
    x = 37,488,863.19/6,913.53
  6. Step 6: Final answer
    x = 5,422.54

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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.