Home / 12,877.80-19,317.66-5,481.48

Finding the Fourth Proportional to 12,877.80, 19,317.66 and 5,481.48

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Solution

The fourth proportional to 12,877.80, 19,317.66 and 5,481.48 is: 8,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.80 : 19,317.66 = 5,481.48 : x
  2. Step 2: Convert to fraction form
    12,877.80/19,317.66 = 5,481.48/x
  3. Step 3: Cross multiply
    12,877.80x = 19,317.66 × 5,481.48
  4. Step 4: Simplify right side
    12,877.80x = 105,889,366.94
  5. Step 5: Solve for x
    x = 105,889,366.94/12,877.80
  6. Step 6: Final answer
    x = 8,222.63

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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.