Home / 10,896.96-16,351.35-8,436.60

Finding the Fourth Proportional to 10,896.96, 16,351.35 and 8,436.60

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Solution

The fourth proportional to 10,896.96, 16,351.35 and 8,436.60 is: 12,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896.96 : 16,351.35 = 8,436.60 : x
  2. Step 2: Convert to fraction form
    10,896.96/16,351.35 = 8,436.60/x
  3. Step 3: Cross multiply
    10,896.96x = 16,351.35 × 8,436.60
  4. Step 4: Simplify right side
    10,896.96x = 137,949,799.41
  5. Step 5: Solve for x
    x = 137,949,799.41/10,896.96
  6. Step 6: Final answer
    x = 12,659.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.