Home / 16,197.20-22,318.83-12,420.17

Finding the Fourth Proportional to 16,197.20, 22,318.83 and 12,420.17

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Solution

The fourth proportional to 16,197.20, 22,318.83 and 12,420.17 is: 17,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,197.20 : 22,318.83 = 12,420.17 : x
  2. Step 2: Convert to fraction form
    16,197.20/22,318.83 = 12,420.17/x
  3. Step 3: Cross multiply
    16,197.20x = 22,318.83 × 12,420.17
  4. Step 4: Simplify right side
    16,197.20x = 277,203,662.80
  5. Step 5: Solve for x
    x = 277,203,662.80/16,197.20
  6. Step 6: Final answer
    x = 17,114.30

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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.