Home / 11,128.38-16,683.85-5,856.49

Finding the Fourth Proportional to 11,128.38, 16,683.85 and 5,856.49

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Solution

The fourth proportional to 11,128.38, 16,683.85 and 5,856.49 is: 8,780.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.38 : 16,683.85 = 5,856.49 : x
  2. Step 2: Convert to fraction form
    11,128.38/16,683.85 = 5,856.49/x
  3. Step 3: Cross multiply
    11,128.38x = 16,683.85 × 5,856.49
  4. Step 4: Simplify right side
    11,128.38x = 97,708,800.69
  5. Step 5: Solve for x
    x = 97,708,800.69/11,128.38
  6. Step 6: Final answer
    x = 8,780.15

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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.