Home / 12,959.42-19,327.52-12,726.14

Finding the Fourth Proportional to 12,959.42, 19,327.52 and 12,726.14

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Solution

The fourth proportional to 12,959.42, 19,327.52 and 12,726.14 is: 18,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.42 : 19,327.52 = 12,726.14 : x
  2. Step 2: Convert to fraction form
    12,959.42/19,327.52 = 12,726.14/x
  3. Step 3: Cross multiply
    12,959.42x = 19,327.52 × 12,726.14
  4. Step 4: Simplify right side
    12,959.42x = 245,964,660.55
  5. Step 5: Solve for x
    x = 245,964,660.55/12,959.42
  6. Step 6: Final answer
    x = 18,979.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.