Home / 11,683.20-16,122.60-6,648.42

Finding the Fourth Proportional to 11,683.20, 16,122.60 and 6,648.42

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Solution

The fourth proportional to 11,683.20, 16,122.60 and 6,648.42 is: 9,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.20 : 16,122.60 = 6,648.42 : x
  2. Step 2: Convert to fraction form
    11,683.20/16,122.60 = 6,648.42/x
  3. Step 3: Cross multiply
    11,683.20x = 16,122.60 × 6,648.42
  4. Step 4: Simplify right side
    11,683.20x = 107,189,816.29
  5. Step 5: Solve for x
    x = 107,189,816.29/11,683.20
  6. Step 6: Final answer
    x = 9,174.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.