Home / 13,998.16-20,997.36-4,002.88

Finding the Fourth Proportional to 13,998.16, 20,997.36 and 4,002.88

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Solution

The fourth proportional to 13,998.16, 20,997.36 and 4,002.88 is: 6,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.16 : 20,997.36 = 4,002.88 : x
  2. Step 2: Convert to fraction form
    13,998.16/20,997.36 = 4,002.88/x
  3. Step 3: Cross multiply
    13,998.16x = 20,997.36 × 4,002.88
  4. Step 4: Simplify right side
    13,998.16x = 84,049,912.40
  5. Step 5: Solve for x
    x = 84,049,912.40/13,998.16
  6. Step 6: Final answer
    x = 6,004.35

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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.