Home / 11,455.16-17,182.72-3,135.24

Finding the Fourth Proportional to 11,455.16, 17,182.72 and 3,135.24

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Solution

The fourth proportional to 11,455.16, 17,182.72 and 3,135.24 is: 4,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.16 : 17,182.72 = 3,135.24 : x
  2. Step 2: Convert to fraction form
    11,455.16/17,182.72 = 3,135.24/x
  3. Step 3: Cross multiply
    11,455.16x = 17,182.72 × 3,135.24
  4. Step 4: Simplify right side
    11,455.16x = 53,871,950.56
  5. Step 5: Solve for x
    x = 53,871,950.56/11,455.16
  6. Step 6: Final answer
    x = 4,702.86

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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.