Home / 7,926.31-11,881.36-5,158.54

Finding the Fourth Proportional to 7,926.31, 11,881.36 and 5,158.54

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Solution

The fourth proportional to 7,926.31, 11,881.36 and 5,158.54 is: 7,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.31 : 11,881.36 = 5,158.54 : x
  2. Step 2: Convert to fraction form
    7,926.31/11,881.36 = 5,158.54/x
  3. Step 3: Cross multiply
    7,926.31x = 11,881.36 × 5,158.54
  4. Step 4: Simplify right side
    7,926.31x = 61,290,385.61
  5. Step 5: Solve for x
    x = 61,290,385.61/7,926.31
  6. Step 6: Final answer
    x = 7,732.53

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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.