Home / 13,800.35-20,694.30-3,937.28

Finding the Fourth Proportional to 13,800.35, 20,694.30 and 3,937.28

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Solution

The fourth proportional to 13,800.35, 20,694.30 and 3,937.28 is: 5,904.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.35 : 20,694.30 = 3,937.28 : x
  2. Step 2: Convert to fraction form
    13,800.35/20,694.30 = 3,937.28/x
  3. Step 3: Cross multiply
    13,800.35x = 20,694.30 × 3,937.28
  4. Step 4: Simplify right side
    13,800.35x = 81,479,253.50
  5. Step 5: Solve for x
    x = 81,479,253.50/13,800.35
  6. Step 6: Final answer
    x = 5,904.14

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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.