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Finding the Fourth Proportional to 6,644.42, 9,102.90 and 6,395.30

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Solution

The fourth proportional to 6,644.42, 9,102.90 and 6,395.30 is: 8,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.42 : 9,102.90 = 6,395.30 : x
  2. Step 2: Convert to fraction form
    6,644.42/9,102.90 = 6,395.30/x
  3. Step 3: Cross multiply
    6,644.42x = 9,102.90 × 6,395.30
  4. Step 4: Simplify right side
    6,644.42x = 58,215,776.37
  5. Step 5: Solve for x
    x = 58,215,776.37/6,644.42
  6. Step 6: Final answer
    x = 8,761.60

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Half scale
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Double scale
Find fourth proportional to 6,645.42, 9,104.27 and 6,396.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.