Home / 16,168.72-22,313.04-12,128.44

Finding the Fourth Proportional to 16,168.72, 22,313.04 and 12,128.44

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Solution

The fourth proportional to 16,168.72, 22,313.04 and 12,128.44 is: 16,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,168.72 : 22,313.04 = 12,128.44 : x
  2. Step 2: Convert to fraction form
    16,168.72/22,313.04 = 12,128.44/x
  3. Step 3: Cross multiply
    16,168.72x = 22,313.04 × 12,128.44
  4. Step 4: Simplify right side
    16,168.72x = 270,622,366.86
  5. Step 5: Solve for x
    x = 270,622,366.86/16,168.72
  6. Step 6: Final answer
    x = 16,737.40

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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.