Home / 13,958.36-20,940.61-7,727.45

Finding the Fourth Proportional to 13,958.36, 20,940.61 and 7,727.45

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Solution

The fourth proportional to 13,958.36, 20,940.61 and 7,727.45 is: 11,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.36 : 20,940.61 = 7,727.45 : x
  2. Step 2: Convert to fraction form
    13,958.36/20,940.61 = 7,727.45/x
  3. Step 3: Cross multiply
    13,958.36x = 20,940.61 × 7,727.45
  4. Step 4: Simplify right side
    13,958.36x = 161,817,549.78
  5. Step 5: Solve for x
    x = 161,817,549.78/13,958.36
  6. Step 6: Final answer
    x = 11,592.88

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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.