Home / 13,115.16-19,669.43-3,755.24

Finding the Fourth Proportional to 13,115.16, 19,669.43 and 3,755.24

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Solution

The fourth proportional to 13,115.16, 19,669.43 and 3,755.24 is: 5,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.16 : 19,669.43 = 3,755.24 : x
  2. Step 2: Convert to fraction form
    13,115.16/19,669.43 = 3,755.24/x
  3. Step 3: Cross multiply
    13,115.16x = 19,669.43 × 3,755.24
  4. Step 4: Simplify right side
    13,115.16x = 73,863,415.11
  5. Step 5: Solve for x
    x = 73,863,415.11/13,115.16
  6. Step 6: Final answer
    x = 5,631.91

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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.