Home / 10,749.33-16,128.75-4,176

Finding the Fourth Proportional to 10,749.33, 16,128.75 and 4,176

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Solution

The fourth proportional to 10,749.33, 16,128.75 and 4,176 is: 6,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.33 : 16,128.75 = 4,176 : x
  2. Step 2: Convert to fraction form
    10,749.33/16,128.75 = 4,176/x
  3. Step 3: Cross multiply
    10,749.33x = 16,128.75 × 4,176
  4. Step 4: Simplify right side
    10,749.33x = 67,353,660
  5. Step 5: Solve for x
    x = 67,353,660/10,749.33
  6. Step 6: Final answer
    x = 6,265.85

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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.