Home / 18,642.24-25,704.96-13,918.56

Finding the Fourth Proportional to 18,642.24, 25,704.96 and 13,918.56

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Solution

The fourth proportional to 18,642.24, 25,704.96 and 13,918.56 is: 19,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.24 : 25,704.96 = 13,918.56 : x
  2. Step 2: Convert to fraction form
    18,642.24/25,704.96 = 13,918.56/x
  3. Step 3: Cross multiply
    18,642.24x = 25,704.96 × 13,918.56
  4. Step 4: Simplify right side
    18,642.24x = 357,776,028.06
  5. Step 5: Solve for x
    x = 357,776,028.06/18,642.24
  6. Step 6: Final answer
    x = 19,191.69

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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.