Home / 6,913.46-9,540.37-3,929.62

Finding the Fourth Proportional to 6,913.46, 9,540.37 and 3,929.62

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Solution

The fourth proportional to 6,913.46, 9,540.37 and 3,929.62 is: 5,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.46 : 9,540.37 = 3,929.62 : x
  2. Step 2: Convert to fraction form
    6,913.46/9,540.37 = 3,929.62/x
  3. Step 3: Cross multiply
    6,913.46x = 9,540.37 × 3,929.62
  4. Step 4: Simplify right side
    6,913.46x = 37,490,028.76
  5. Step 5: Solve for x
    x = 37,490,028.76/6,913.46
  6. Step 6: Final answer
    x = 5,422.76

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1.5x scale

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.