Home / 11,945.56-16,483.62-6,639.52

Finding the Fourth Proportional to 11,945.56, 16,483.62 and 6,639.52

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Solution

The fourth proportional to 11,945.56, 16,483.62 and 6,639.52 is: 9,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.56 : 16,483.62 = 6,639.52 : x
  2. Step 2: Convert to fraction form
    11,945.56/16,483.62 = 6,639.52/x
  3. Step 3: Cross multiply
    11,945.56x = 16,483.62 × 6,639.52
  4. Step 4: Simplify right side
    11,945.56x = 109,443,324.66
  5. Step 5: Solve for x
    x = 109,443,324.66/11,945.56
  6. Step 6: Final answer
    x = 9,161.84

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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.