Home / 11,236.36-15,506.16-6,456.64

Finding the Fourth Proportional to 11,236.36, 15,506.16 and 6,456.64

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Solution

The fourth proportional to 11,236.36, 15,506.16 and 6,456.64 is: 8,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.36 : 15,506.16 = 6,456.64 : x
  2. Step 2: Convert to fraction form
    11,236.36/15,506.16 = 6,456.64/x
  3. Step 3: Cross multiply
    11,236.36x = 15,506.16 × 6,456.64
  4. Step 4: Simplify right side
    11,236.36x = 100,117,692.90
  5. Step 5: Solve for x
    x = 100,117,692.90/11,236.36
  6. Step 6: Final answer
    x = 8,910.15

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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.