Home / 12,959.21-19,438.88-3,953.44

Finding the Fourth Proportional to 12,959.21, 19,438.88 and 3,953.44

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Solution

The fourth proportional to 12,959.21, 19,438.88 and 3,953.44 is: 5,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.21 : 19,438.88 = 3,953.44 : x
  2. Step 2: Convert to fraction form
    12,959.21/19,438.88 = 3,953.44/x
  3. Step 3: Cross multiply
    12,959.21x = 19,438.88 × 3,953.44
  4. Step 4: Simplify right side
    12,959.21x = 76,850,450.28
  5. Step 5: Solve for x
    x = 76,850,450.28/12,959.21
  6. Step 6: Final answer
    x = 5,930.18

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1.5x scale

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.