Home / 13,427.12-20,140.88-4,662.24

Finding the Fourth Proportional to 13,427.12, 20,140.88 and 4,662.24

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Solution

The fourth proportional to 13,427.12, 20,140.88 and 4,662.24 is: 6,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.12 : 20,140.88 = 4,662.24 : x
  2. Step 2: Convert to fraction form
    13,427.12/20,140.88 = 4,662.24/x
  3. Step 3: Cross multiply
    13,427.12x = 20,140.88 × 4,662.24
  4. Step 4: Simplify right side
    13,427.12x = 93,901,593.06
  5. Step 5: Solve for x
    x = 93,901,593.06/13,427.12
  6. Step 6: Final answer
    x = 6,993.43

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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.