Home / 19,179.69-26,471.12-12,012.32

Finding the Fourth Proportional to 19,179.69, 26,471.12 and 12,012.32

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Solution

The fourth proportional to 19,179.69, 26,471.12 and 12,012.32 is: 16,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.69 : 26,471.12 = 12,012.32 : x
  2. Step 2: Convert to fraction form
    19,179.69/26,471.12 = 12,012.32/x
  3. Step 3: Cross multiply
    19,179.69x = 26,471.12 × 12,012.32
  4. Step 4: Simplify right side
    19,179.69x = 317,979,488.98
  5. Step 5: Solve for x
    x = 317,979,488.98/19,179.69
  6. Step 6: Final answer
    x = 16,578.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.