Home / 6,913.71-9,540.95-3,930.53

Finding the Fourth Proportional to 6,913.71, 9,540.95 and 3,930.53

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Solution

The fourth proportional to 6,913.71, 9,540.95 and 3,930.53 is: 5,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.71 : 9,540.95 = 3,930.53 : x
  2. Step 2: Convert to fraction form
    6,913.71/9,540.95 = 3,930.53/x
  3. Step 3: Cross multiply
    6,913.71x = 9,540.95 × 3,930.53
  4. Step 4: Simplify right side
    6,913.71x = 37,500,922.85
  5. Step 5: Solve for x
    x = 37,500,922.85/6,913.71
  6. Step 6: Final answer
    x = 5,424.14

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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.