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Finding the Fourth Proportional to 8,603.59, 12,901.11 and 2,759.44

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Solution

The fourth proportional to 8,603.59, 12,901.11 and 2,759.44 is: 4,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.59 : 12,901.11 = 2,759.44 : x
  2. Step 2: Convert to fraction form
    8,603.59/12,901.11 = 2,759.44/x
  3. Step 3: Cross multiply
    8,603.59x = 12,901.11 × 2,759.44
  4. Step 4: Simplify right side
    8,603.59x = 35,599,838.98
  5. Step 5: Solve for x
    x = 35,599,838.98/8,603.59
  6. Step 6: Final answer
    x = 4,137.79

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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.