Home / 10,981.10-16,470.93-3,190.70

Finding the Fourth Proportional to 10,981.10, 16,470.93 and 3,190.70

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Solution

The fourth proportional to 10,981.10, 16,470.93 and 3,190.70 is: 4,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.10 : 16,470.93 = 3,190.70 : x
  2. Step 2: Convert to fraction form
    10,981.10/16,470.93 = 3,190.70/x
  3. Step 3: Cross multiply
    10,981.10x = 16,470.93 × 3,190.70
  4. Step 4: Simplify right side
    10,981.10x = 52,553,796.35
  5. Step 5: Solve for x
    x = 52,553,796.35/10,981.10
  6. Step 6: Final answer
    x = 4,785.84

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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.