Home / 19,222.11-26,511.30-12,509.91

Finding the Fourth Proportional to 19,222.11, 26,511.30 and 12,509.91

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Solution

The fourth proportional to 19,222.11, 26,511.30 and 12,509.91 is: 17,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.11 : 26,511.30 = 12,509.91 : x
  2. Step 2: Convert to fraction form
    19,222.11/26,511.30 = 12,509.91/x
  3. Step 3: Cross multiply
    19,222.11x = 26,511.30 × 12,509.91
  4. Step 4: Simplify right side
    19,222.11x = 331,653,976.98
  5. Step 5: Solve for x
    x = 331,653,976.98/19,222.11
  6. Step 6: Final answer
    x = 17,253.78

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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.