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Finding the Fourth Proportional to 7,858.56, 11,791.89 and 4,347.93

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Solution

The fourth proportional to 7,858.56, 11,791.89 and 4,347.93 is: 6,524.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.56 : 11,791.89 = 4,347.93 : x
  2. Step 2: Convert to fraction form
    7,858.56/11,791.89 = 4,347.93/x
  3. Step 3: Cross multiply
    7,858.56x = 11,791.89 × 4,347.93
  4. Step 4: Simplify right side
    7,858.56x = 51,270,312.29
  5. Step 5: Solve for x
    x = 51,270,312.29/7,858.56
  6. Step 6: Final answer
    x = 6,524.14

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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.