Home / 16,172.70-22,310.95-11,689.35

Finding the Fourth Proportional to 16,172.70, 22,310.95 and 11,689.35

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Solution

The fourth proportional to 16,172.70, 22,310.95 and 11,689.35 is: 16,125.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,172.70 : 22,310.95 = 11,689.35 : x
  2. Step 2: Convert to fraction form
    16,172.70/22,310.95 = 11,689.35/x
  3. Step 3: Cross multiply
    16,172.70x = 22,310.95 × 11,689.35
  4. Step 4: Simplify right side
    16,172.70x = 260,800,444.94
  5. Step 5: Solve for x
    x = 260,800,444.94/16,172.70
  6. Step 6: Final answer
    x = 16,125.97

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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.