Home / 7,509.24-11,257.79-3,129.98

Finding the Fourth Proportional to 7,509.24, 11,257.79 and 3,129.98

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Solution

The fourth proportional to 7,509.24, 11,257.79 and 3,129.98 is: 4,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.24 : 11,257.79 = 3,129.98 : x
  2. Step 2: Convert to fraction form
    7,509.24/11,257.79 = 3,129.98/x
  3. Step 3: Cross multiply
    7,509.24x = 11,257.79 × 3,129.98
  4. Step 4: Simplify right side
    7,509.24x = 35,236,585.61
  5. Step 5: Solve for x
    x = 35,236,585.61/7,509.24
  6. Step 6: Final answer
    x = 4,692.43

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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.