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Finding the Fourth Proportional to 8,620.19, 11,895.87 and 4,894.19

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Solution

The fourth proportional to 8,620.19, 11,895.87 and 4,894.19 is: 6,753.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.19 : 11,895.87 = 4,894.19 : x
  2. Step 2: Convert to fraction form
    8,620.19/11,895.87 = 4,894.19/x
  3. Step 3: Cross multiply
    8,620.19x = 11,895.87 × 4,894.19
  4. Step 4: Simplify right side
    8,620.19x = 58,220,648.00
  5. Step 5: Solve for x
    x = 58,220,648.00/8,620.19
  6. Step 6: Final answer
    x = 6,753.99

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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.