Home / 13,946.32-20,917.62-5,180.04

Finding the Fourth Proportional to 13,946.32, 20,917.62 and 5,180.04

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Solution

The fourth proportional to 13,946.32, 20,917.62 and 5,180.04 is: 7,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.32 : 20,917.62 = 5,180.04 : x
  2. Step 2: Convert to fraction form
    13,946.32/20,917.62 = 5,180.04/x
  3. Step 3: Cross multiply
    13,946.32x = 20,917.62 × 5,180.04
  4. Step 4: Simplify right side
    13,946.32x = 108,354,108.30
  5. Step 5: Solve for x
    x = 108,354,108.30/13,946.32
  6. Step 6: Final answer
    x = 7,769.37

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1.5x scale

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.