Home / 7,926.94-11,881.82-5,155.60

Finding the Fourth Proportional to 7,926.94, 11,881.82 and 5,155.60

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Solution

The fourth proportional to 7,926.94, 11,881.82 and 5,155.60 is: 7,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.94 : 11,881.82 = 5,155.60 : x
  2. Step 2: Convert to fraction form
    7,926.94/11,881.82 = 5,155.60/x
  3. Step 3: Cross multiply
    7,926.94x = 11,881.82 × 5,155.60
  4. Step 4: Simplify right side
    7,926.94x = 61,257,851.78
  5. Step 5: Solve for x
    x = 61,257,851.78/7,926.94
  6. Step 6: Final answer
    x = 7,727.81

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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.