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Finding the Fourth Proportional to 8,695.79, 13,014.52 and 7,135.73

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Solution

The fourth proportional to 8,695.79, 13,014.52 and 7,135.73 is: 10,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.79 : 13,014.52 = 7,135.73 : x
  2. Step 2: Convert to fraction form
    8,695.79/13,014.52 = 7,135.73/x
  3. Step 3: Cross multiply
    8,695.79x = 13,014.52 × 7,135.73
  4. Step 4: Simplify right side
    8,695.79x = 92,868,100.80
  5. Step 5: Solve for x
    x = 92,868,100.80/8,695.79
  6. Step 6: Final answer
    x = 10,679.66

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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.