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Finding the Fourth Proportional to 8,397.96, 11,590.23 and 5,422.43

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Solution

The fourth proportional to 8,397.96, 11,590.23 and 5,422.43 is: 7,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.96 : 11,590.23 = 5,422.43 : x
  2. Step 2: Convert to fraction form
    8,397.96/11,590.23 = 5,422.43/x
  3. Step 3: Cross multiply
    8,397.96x = 11,590.23 × 5,422.43
  4. Step 4: Simplify right side
    8,397.96x = 62,847,152.91
  5. Step 5: Solve for x
    x = 62,847,152.91/8,397.96
  6. Step 6: Final answer
    x = 7,483.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.