Home / 9,115.23-13,665.96-4,729.89

Finding the Fourth Proportional to 9,115.23, 13,665.96 and 4,729.89

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Solution

The fourth proportional to 9,115.23, 13,665.96 and 4,729.89 is: 7,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.23 : 13,665.96 = 4,729.89 : x
  2. Step 2: Convert to fraction form
    9,115.23/13,665.96 = 4,729.89/x
  3. Step 3: Cross multiply
    9,115.23x = 13,665.96 × 4,729.89
  4. Step 4: Simplify right side
    9,115.23x = 64,638,487.54
  5. Step 5: Solve for x
    x = 64,638,487.54/9,115.23
  6. Step 6: Final answer
    x = 7,091.26

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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.