Home / 12,741.80-19,101.80-4,839.90

Finding the Fourth Proportional to 12,741.80, 19,101.80 and 4,839.90

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Solution

The fourth proportional to 12,741.80, 19,101.80 and 4,839.90 is: 7,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.80 : 19,101.80 = 4,839.90 : x
  2. Step 2: Convert to fraction form
    12,741.80/19,101.80 = 4,839.90/x
  3. Step 3: Cross multiply
    12,741.80x = 19,101.80 × 4,839.90
  4. Step 4: Simplify right side
    12,741.80x = 92,450,801.82
  5. Step 5: Solve for x
    x = 92,450,801.82/12,741.80
  6. Step 6: Final answer
    x = 7,255.71

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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.