Home / 11,505.27-15,876.86-6,469.77

Finding the Fourth Proportional to 11,505.27, 15,876.86 and 6,469.77

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Solution

The fourth proportional to 11,505.27, 15,876.86 and 6,469.77 is: 8,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.27 : 15,876.86 = 6,469.77 : x
  2. Step 2: Convert to fraction form
    11,505.27/15,876.86 = 6,469.77/x
  3. Step 3: Cross multiply
    11,505.27x = 15,876.86 × 6,469.77
  4. Step 4: Simplify right side
    11,505.27x = 102,719,600.17
  5. Step 5: Solve for x
    x = 102,719,600.17/11,505.27
  6. Step 6: Final answer
    x = 8,928.05

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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.