Home / 10,745.19-16,102.20-7,631.29

Finding the Fourth Proportional to 10,745.19, 16,102.20 and 7,631.29

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Solution

The fourth proportional to 10,745.19, 16,102.20 and 7,631.29 is: 11,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.19 : 16,102.20 = 7,631.29 : x
  2. Step 2: Convert to fraction form
    10,745.19/16,102.20 = 7,631.29/x
  3. Step 3: Cross multiply
    10,745.19x = 16,102.20 × 7,631.29
  4. Step 4: Simplify right side
    10,745.19x = 122,880,557.84
  5. Step 5: Solve for x
    x = 122,880,557.84/10,745.19
  6. Step 6: Final answer
    x = 11,435.87

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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.