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Finding the Fourth Proportional to 8,590.83, 12,886.17 and 5,104.99

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Solution

The fourth proportional to 8,590.83, 12,886.17 and 5,104.99 is: 7,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.83 : 12,886.17 = 5,104.99 : x
  2. Step 2: Convert to fraction form
    8,590.83/12,886.17 = 5,104.99/x
  3. Step 3: Cross multiply
    8,590.83x = 12,886.17 × 5,104.99
  4. Step 4: Simplify right side
    8,590.83x = 65,783,794.67
  5. Step 5: Solve for x
    x = 65,783,794.67/8,590.83
  6. Step 6: Final answer
    x = 7,657.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.