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Finding the Fourth Proportional to 8,603.44, 12,904.56 and 2,759.56

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Solution

The fourth proportional to 8,603.44, 12,904.56 and 2,759.56 is: 4,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.44 : 12,904.56 = 2,759.56 : x
  2. Step 2: Convert to fraction form
    8,603.44/12,904.56 = 2,759.56/x
  3. Step 3: Cross multiply
    8,603.44x = 12,904.56 × 2,759.56
  4. Step 4: Simplify right side
    8,603.44x = 35,610,907.59
  5. Step 5: Solve for x
    x = 35,610,907.59/8,603.44
  6. Step 6: Final answer
    x = 4,139.15

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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.