Home / 8,455.21-12,682.82-6,603.55

Finding the Fourth Proportional to 8,455.21, 12,682.82 and 6,603.55

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Solution

The fourth proportional to 8,455.21, 12,682.82 and 6,603.55 is: 9,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.21 : 12,682.82 = 6,603.55 : x
  2. Step 2: Convert to fraction form
    8,455.21/12,682.82 = 6,603.55/x
  3. Step 3: Cross multiply
    8,455.21x = 12,682.82 × 6,603.55
  4. Step 4: Simplify right side
    8,455.21x = 83,751,636.01
  5. Step 5: Solve for x
    x = 83,751,636.01/8,455.21
  6. Step 6: Final answer
    x = 9,905.33

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Similar ratio
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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.