Home / 13,338.83-20,020.35-7,104.12

Finding the Fourth Proportional to 13,338.83, 20,020.35 and 7,104.12

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Solution

The fourth proportional to 13,338.83, 20,020.35 and 7,104.12 is: 10,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.83 : 20,020.35 = 7,104.12 : x
  2. Step 2: Convert to fraction form
    13,338.83/20,020.35 = 7,104.12/x
  3. Step 3: Cross multiply
    13,338.83x = 20,020.35 × 7,104.12
  4. Step 4: Simplify right side
    13,338.83x = 142,226,993.06
  5. Step 5: Solve for x
    x = 142,226,993.06/13,338.83
  6. Step 6: Final answer
    x = 10,662.63

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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.