Home / 13,825.36-20,738.12-3,437.11

Finding the Fourth Proportional to 13,825.36, 20,738.12 and 3,437.11

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Solution

The fourth proportional to 13,825.36, 20,738.12 and 3,437.11 is: 5,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.36 : 20,738.12 = 3,437.11 : x
  2. Step 2: Convert to fraction form
    13,825.36/20,738.12 = 3,437.11/x
  3. Step 3: Cross multiply
    13,825.36x = 20,738.12 × 3,437.11
  4. Step 4: Simplify right side
    13,825.36x = 71,279,208.37
  5. Step 5: Solve for x
    x = 71,279,208.37/13,825.36
  6. Step 6: Final answer
    x = 5,155.69

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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.