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Finding the Fourth Proportional to 8,904.87, 13,357.16 and 3,638.73

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Solution

The fourth proportional to 8,904.87, 13,357.16 and 3,638.73 is: 5,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.87 : 13,357.16 = 3,638.73 : x
  2. Step 2: Convert to fraction form
    8,904.87/13,357.16 = 3,638.73/x
  3. Step 3: Cross multiply
    8,904.87x = 13,357.16 × 3,638.73
  4. Step 4: Simplify right side
    8,904.87x = 48,603,080.61
  5. Step 5: Solve for x
    x = 48,603,080.61/8,904.87
  6. Step 6: Final answer
    x = 5,458.03

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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.