Home / 12,851.41-19,278.92-3,967.47

Finding the Fourth Proportional to 12,851.41, 19,278.92 and 3,967.47

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Solution

The fourth proportional to 12,851.41, 19,278.92 and 3,967.47 is: 5,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,851.41 : 19,278.92 = 3,967.47 : x
  2. Step 2: Convert to fraction form
    12,851.41/19,278.92 = 3,967.47/x
  3. Step 3: Cross multiply
    12,851.41x = 19,278.92 × 3,967.47
  4. Step 4: Simplify right side
    12,851.41x = 76,488,440.34
  5. Step 5: Solve for x
    x = 76,488,440.34/12,851.41
  6. Step 6: Final answer
    x = 5,951.75

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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.