Home / 12,979.25-19,473.39-4,095.95

Finding the Fourth Proportional to 12,979.25, 19,473.39 and 4,095.95

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Solution

The fourth proportional to 12,979.25, 19,473.39 and 4,095.95 is: 6,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.25 : 19,473.39 = 4,095.95 : x
  2. Step 2: Convert to fraction form
    12,979.25/19,473.39 = 4,095.95/x
  3. Step 3: Cross multiply
    12,979.25x = 19,473.39 × 4,095.95
  4. Step 4: Simplify right side
    12,979.25x = 79,761,913.92
  5. Step 5: Solve for x
    x = 79,761,913.92/12,979.25
  6. Step 6: Final answer
    x = 6,145.34

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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.