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Finding the Fourth Proportional to 8,995.78, 13,484.43 and 3,447.62

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Solution

The fourth proportional to 8,995.78, 13,484.43 and 3,447.62 is: 5,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,995.78 : 13,484.43 = 3,447.62 : x
  2. Step 2: Convert to fraction form
    8,995.78/13,484.43 = 3,447.62/x
  3. Step 3: Cross multiply
    8,995.78x = 13,484.43 × 3,447.62
  4. Step 4: Simplify right side
    8,995.78x = 46,489,190.56
  5. Step 5: Solve for x
    x = 46,489,190.56/8,995.78
  6. Step 6: Final answer
    x = 5,167.89

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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.