Home / 18,781.93-25,907.07-13,114.56

Finding the Fourth Proportional to 18,781.93, 25,907.07 and 13,114.56

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Solution

The fourth proportional to 18,781.93, 25,907.07 and 13,114.56 is: 18,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.93 : 25,907.07 = 13,114.56 : x
  2. Step 2: Convert to fraction form
    18,781.93/25,907.07 = 13,114.56/x
  3. Step 3: Cross multiply
    18,781.93x = 25,907.07 × 13,114.56
  4. Step 4: Simplify right side
    18,781.93x = 339,759,713.89
  5. Step 5: Solve for x
    x = 339,759,713.89/18,781.93
  6. Step 6: Final answer
    x = 18,089.72

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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.