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Finding the Fourth Proportional to 8,889.93, 13,336.18 and 2,651.85

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Solution

The fourth proportional to 8,889.93, 13,336.18 and 2,651.85 is: 3,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.93 : 13,336.18 = 2,651.85 : x
  2. Step 2: Convert to fraction form
    8,889.93/13,336.18 = 2,651.85/x
  3. Step 3: Cross multiply
    8,889.93x = 13,336.18 × 2,651.85
  4. Step 4: Simplify right side
    8,889.93x = 35,365,542.30
  5. Step 5: Solve for x
    x = 35,365,542.30/8,889.93
  6. Step 6: Final answer
    x = 3,978.16

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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.