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Finding the Fourth Proportional to 9,855.34, 13,600.41 and 5,379.19

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Solution

The fourth proportional to 9,855.34, 13,600.41 and 5,379.19 is: 7,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.34 : 13,600.41 = 5,379.19 : x
  2. Step 2: Convert to fraction form
    9,855.34/13,600.41 = 5,379.19/x
  3. Step 3: Cross multiply
    9,855.34x = 13,600.41 × 5,379.19
  4. Step 4: Simplify right side
    9,855.34x = 73,159,135.29
  5. Step 5: Solve for x
    x = 73,159,135.29/9,855.34
  6. Step 6: Final answer
    x = 7,423.30

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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.