Home / 16,963.45-25,439.10-8,640.70

Finding the Fourth Proportional to 16,963.45, 25,439.10 and 8,640.70

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Solution

The fourth proportional to 16,963.45, 25,439.10 and 8,640.70 is: 12,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,963.45 : 25,439.10 = 8,640.70 : x
  2. Step 2: Convert to fraction form
    16,963.45/25,439.10 = 8,640.70/x
  3. Step 3: Cross multiply
    16,963.45x = 25,439.10 × 8,640.70
  4. Step 4: Simplify right side
    16,963.45x = 219,811,631.37
  5. Step 5: Solve for x
    x = 219,811,631.37/16,963.45
  6. Step 6: Final answer
    x = 12,957.96

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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.