Home / 13,362.12-20,065.96-11,138.66

Finding the Fourth Proportional to 13,362.12, 20,065.96 and 11,138.66

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Solution

The fourth proportional to 13,362.12, 20,065.96 and 11,138.66 is: 16,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.12 : 20,065.96 = 11,138.66 : x
  2. Step 2: Convert to fraction form
    13,362.12/20,065.96 = 11,138.66/x
  3. Step 3: Cross multiply
    13,362.12x = 20,065.96 × 11,138.66
  4. Step 4: Simplify right side
    13,362.12x = 223,507,906.01
  5. Step 5: Solve for x
    x = 223,507,906.01/13,362.12
  6. Step 6: Final answer
    x = 16,726.98

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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.