Home / 19,267.39-26,557.19-12,891.71

Finding the Fourth Proportional to 19,267.39, 26,557.19 and 12,891.71

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Solution

The fourth proportional to 19,267.39, 26,557.19 and 12,891.71 is: 17,769.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.39 : 26,557.19 = 12,891.71 : x
  2. Step 2: Convert to fraction form
    19,267.39/26,557.19 = 12,891.71/x
  3. Step 3: Cross multiply
    19,267.39x = 26,557.19 × 12,891.71
  4. Step 4: Simplify right side
    19,267.39x = 342,367,529.05
  5. Step 5: Solve for x
    x = 342,367,529.05/19,267.39
  6. Step 6: Final answer
    x = 17,769.27

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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.