Home / 12,894.26-19,342.41-5,498.78

Finding the Fourth Proportional to 12,894.26, 19,342.41 and 5,498.78

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Solution

The fourth proportional to 12,894.26, 19,342.41 and 5,498.78 is: 8,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.26 : 19,342.41 = 5,498.78 : x
  2. Step 2: Convert to fraction form
    12,894.26/19,342.41 = 5,498.78/x
  3. Step 3: Cross multiply
    12,894.26x = 19,342.41 × 5,498.78
  4. Step 4: Simplify right side
    12,894.26x = 106,359,679.66
  5. Step 5: Solve for x
    x = 106,359,679.66/12,894.26
  6. Step 6: Final answer
    x = 8,248.61

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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.