Home / 13,917.28-20,883.12-6,132.64

Finding the Fourth Proportional to 13,917.28, 20,883.12 and 6,132.64

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Solution

The fourth proportional to 13,917.28, 20,883.12 and 6,132.64 is: 9,202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.28 : 20,883.12 = 6,132.64 : x
  2. Step 2: Convert to fraction form
    13,917.28/20,883.12 = 6,132.64/x
  3. Step 3: Cross multiply
    13,917.28x = 20,883.12 × 6,132.64
  4. Step 4: Simplify right side
    13,917.28x = 128,068,657.04
  5. Step 5: Solve for x
    x = 128,068,657.04/13,917.28
  6. Step 6: Final answer
    x = 9,202.13

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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.