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Finding the Fourth Proportional to 8,365.88, 12,544.27 and 3,429.95

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Solution

The fourth proportional to 8,365.88, 12,544.27 and 3,429.95 is: 5,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.88 : 12,544.27 = 3,429.95 : x
  2. Step 2: Convert to fraction form
    8,365.88/12,544.27 = 3,429.95/x
  3. Step 3: Cross multiply
    8,365.88x = 12,544.27 × 3,429.95
  4. Step 4: Simplify right side
    8,365.88x = 43,026,147.59
  5. Step 5: Solve for x
    x = 43,026,147.59/8,365.88
  6. Step 6: Final answer
    x = 5,143.05

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1.5x scale

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.