Home / 18,447.08-25,449.73-11,361.20

Finding the Fourth Proportional to 18,447.08, 25,449.73 and 11,361.20

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Solution

The fourth proportional to 18,447.08, 25,449.73 and 11,361.20 is: 15,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.08 : 25,449.73 = 11,361.20 : x
  2. Step 2: Convert to fraction form
    18,447.08/25,449.73 = 11,361.20/x
  3. Step 3: Cross multiply
    18,447.08x = 25,449.73 × 11,361.20
  4. Step 4: Simplify right side
    18,447.08x = 289,139,316.82
  5. Step 5: Solve for x
    x = 289,139,316.82/18,447.08
  6. Step 6: Final answer
    x = 15,673.99

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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.