Home / 12,959.80-19,439.47-4,194.71

Finding the Fourth Proportional to 12,959.80, 19,439.47 and 4,194.71

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Solution

The fourth proportional to 12,959.80, 19,439.47 and 4,194.71 is: 6,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.80 : 19,439.47 = 4,194.71 : x
  2. Step 2: Convert to fraction form
    12,959.80/19,439.47 = 4,194.71/x
  3. Step 3: Cross multiply
    12,959.80x = 19,439.47 × 4,194.71
  4. Step 4: Simplify right side
    12,959.80x = 81,542,963.02
  5. Step 5: Solve for x
    x = 81,542,963.02/12,959.80
  6. Step 6: Final answer
    x = 6,291.99

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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.