Home / 8,148.29-11,322.32-8,115.48

Finding the Fourth Proportional to 8,148.29, 11,322.32 and 8,115.48

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Solution

The fourth proportional to 8,148.29, 11,322.32 and 8,115.48 is: 11,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.29 : 11,322.32 = 8,115.48 : x
  2. Step 2: Convert to fraction form
    8,148.29/11,322.32 = 8,115.48/x
  3. Step 3: Cross multiply
    8,148.29x = 11,322.32 × 8,115.48
  4. Step 4: Simplify right side
    8,148.29x = 91,886,020.94
  5. Step 5: Solve for x
    x = 91,886,020.94/8,148.29
  6. Step 6: Final answer
    x = 11,276.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.