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Finding the Fourth Proportional to 8,992.26, 13,489.62 and 8,445.51

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Solution

The fourth proportional to 8,992.26, 13,489.62 and 8,445.51 is: 12,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.26 : 13,489.62 = 8,445.51 : x
  2. Step 2: Convert to fraction form
    8,992.26/13,489.62 = 8,445.51/x
  3. Step 3: Cross multiply
    8,992.26x = 13,489.62 × 8,445.51
  4. Step 4: Simplify right side
    8,992.26x = 113,926,720.61
  5. Step 5: Solve for x
    x = 113,926,720.61/8,992.26
  6. Step 6: Final answer
    x = 12,669.42

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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.