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Finding the Fourth Proportional to 8,655.44, 12,986.04 and 5,193.68

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Solution

The fourth proportional to 8,655.44, 12,986.04 and 5,193.68 is: 7,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.44 : 12,986.04 = 5,193.68 : x
  2. Step 2: Convert to fraction form
    8,655.44/12,986.04 = 5,193.68/x
  3. Step 3: Cross multiply
    8,655.44x = 12,986.04 × 5,193.68
  4. Step 4: Simplify right side
    8,655.44x = 67,445,336.23
  5. Step 5: Solve for x
    x = 67,445,336.23/8,655.44
  6. Step 6: Final answer
    x = 7,792.25

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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.