Home / 12,145.91-16,760.18-8,960.95

Finding the Fourth Proportional to 12,145.91, 16,760.18 and 8,960.95

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Solution

The fourth proportional to 12,145.91, 16,760.18 and 8,960.95 is: 12,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.91 : 16,760.18 = 8,960.95 : x
  2. Step 2: Convert to fraction form
    12,145.91/16,760.18 = 8,960.95/x
  3. Step 3: Cross multiply
    12,145.91x = 16,760.18 × 8,960.95
  4. Step 4: Simplify right side
    12,145.91x = 150,187,006.37
  5. Step 5: Solve for x
    x = 150,187,006.37/12,145.91
  6. Step 6: Final answer
    x = 12,365.23

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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.