Home / 14,939.46-20,616.45-8,651.70

Finding the Fourth Proportional to 14,939.46, 20,616.45 and 8,651.70

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Solution

The fourth proportional to 14,939.46, 20,616.45 and 8,651.70 is: 11,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.46 : 20,616.45 = 8,651.70 : x
  2. Step 2: Convert to fraction form
    14,939.46/20,616.45 = 8,651.70/x
  3. Step 3: Cross multiply
    14,939.46x = 20,616.45 × 8,651.70
  4. Step 4: Simplify right side
    14,939.46x = 178,367,340.47
  5. Step 5: Solve for x
    x = 178,367,340.47/14,939.46
  6. Step 6: Final answer
    x = 11,939.34

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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.