Home / 12,722.82-19,087.46-3,957.80

Finding the Fourth Proportional to 12,722.82, 19,087.46 and 3,957.80

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Solution

The fourth proportional to 12,722.82, 19,087.46 and 3,957.80 is: 5,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.82 : 19,087.46 = 3,957.80 : x
  2. Step 2: Convert to fraction form
    12,722.82/19,087.46 = 3,957.80/x
  3. Step 3: Cross multiply
    12,722.82x = 19,087.46 × 3,957.80
  4. Step 4: Simplify right side
    12,722.82x = 75,544,349.19
  5. Step 5: Solve for x
    x = 75,544,349.19/12,722.82
  6. Step 6: Final answer
    x = 5,937.70

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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.