Home / 18,447.12-25,449.72-11,361.24

Finding the Fourth Proportional to 18,447.12, 25,449.72 and 11,361.24

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Solution

The fourth proportional to 18,447.12, 25,449.72 and 11,361.24 is: 15,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.12 : 25,449.72 = 11,361.24 : x
  2. Step 2: Convert to fraction form
    18,447.12/25,449.72 = 11,361.24/x
  3. Step 3: Cross multiply
    18,447.12x = 25,449.72 × 11,361.24
  4. Step 4: Simplify right side
    18,447.12x = 289,140,376.85
  5. Step 5: Solve for x
    x = 289,140,376.85/18,447.12
  6. Step 6: Final answer
    x = 15,674.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.