Home / 8,408.37-11,603.45-4,631.46

Finding the Fourth Proportional to 8,408.37, 11,603.45 and 4,631.46

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Solution

The fourth proportional to 8,408.37, 11,603.45 and 4,631.46 is: 6,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.37 : 11,603.45 = 4,631.46 : x
  2. Step 2: Convert to fraction form
    8,408.37/11,603.45 = 4,631.46/x
  3. Step 3: Cross multiply
    8,408.37x = 11,603.45 × 4,631.46
  4. Step 4: Simplify right side
    8,408.37x = 53,740,891.38
  5. Step 5: Solve for x
    x = 53,740,891.38/8,408.37
  6. Step 6: Final answer
    x = 6,391.36

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Half scale
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Double scale
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Similar ratio
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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.