Home / 11,663.20-16,091.60-6,627.20

Finding the Fourth Proportional to 11,663.20, 16,091.60 and 6,627.20

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Solution

The fourth proportional to 11,663.20, 16,091.60 and 6,627.20 is: 9,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.20 : 16,091.60 = 6,627.20 : x
  2. Step 2: Convert to fraction form
    11,663.20/16,091.60 = 6,627.20/x
  3. Step 3: Cross multiply
    11,663.20x = 16,091.60 × 6,627.20
  4. Step 4: Simplify right side
    11,663.20x = 106,642,251.52
  5. Step 5: Solve for x
    x = 106,642,251.52/11,663.20
  6. Step 6: Final answer
    x = 9,143.48

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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.