Home / 11,538.28-15,921.84-6,500.86

Finding the Fourth Proportional to 11,538.28, 15,921.84 and 6,500.86

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Solution

The fourth proportional to 11,538.28, 15,921.84 and 6,500.86 is: 8,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.28 : 15,921.84 = 6,500.86 : x
  2. Step 2: Convert to fraction form
    11,538.28/15,921.84 = 6,500.86/x
  3. Step 3: Cross multiply
    11,538.28x = 15,921.84 × 6,500.86
  4. Step 4: Simplify right side
    11,538.28x = 103,505,652.78
  5. Step 5: Solve for x
    x = 103,505,652.78/11,538.28
  6. Step 6: Final answer
    x = 8,970.63

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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.