Home / 13,975.56-20,960.10-4,112.20

Finding the Fourth Proportional to 13,975.56, 20,960.10 and 4,112.20

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Solution

The fourth proportional to 13,975.56, 20,960.10 and 4,112.20 is: 6,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.56 : 20,960.10 = 4,112.20 : x
  2. Step 2: Convert to fraction form
    13,975.56/20,960.10 = 4,112.20/x
  3. Step 3: Cross multiply
    13,975.56x = 20,960.10 × 4,112.20
  4. Step 4: Simplify right side
    13,975.56x = 86,192,123.22
  5. Step 5: Solve for x
    x = 86,192,123.22/13,975.56
  6. Step 6: Final answer
    x = 6,167.35

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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.