Home / 7,849.60-11,749.79-4,142.63

Finding the Fourth Proportional to 7,849.60, 11,749.79 and 4,142.63

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Solution

The fourth proportional to 7,849.60, 11,749.79 and 4,142.63 is: 6,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.60 : 11,749.79 = 4,142.63 : x
  2. Step 2: Convert to fraction form
    7,849.60/11,749.79 = 4,142.63/x
  3. Step 3: Cross multiply
    7,849.60x = 11,749.79 × 4,142.63
  4. Step 4: Simplify right side
    7,849.60x = 48,675,032.55
  5. Step 5: Solve for x
    x = 48,675,032.55/7,849.60
  6. Step 6: Final answer
    x = 6,200.96

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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.