Home / 8,436.99-11,644.05-6,199.63

Finding the Fourth Proportional to 8,436.99, 11,644.05 and 6,199.63

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Solution

The fourth proportional to 8,436.99, 11,644.05 and 6,199.63 is: 8,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.99 : 11,644.05 = 6,199.63 : x
  2. Step 2: Convert to fraction form
    8,436.99/11,644.05 = 6,199.63/x
  3. Step 3: Cross multiply
    8,436.99x = 11,644.05 × 6,199.63
  4. Step 4: Simplify right side
    8,436.99x = 72,188,801.70
  5. Step 5: Solve for x
    x = 72,188,801.70/8,436.99
  6. Step 6: Final answer
    x = 8,556.23

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Half scale
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Double scale
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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.