Home / 11,485.83-15,850.46-6,450.54

Finding the Fourth Proportional to 11,485.83, 15,850.46 and 6,450.54

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Solution

The fourth proportional to 11,485.83, 15,850.46 and 6,450.54 is: 8,901.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.83 : 15,850.46 = 6,450.54 : x
  2. Step 2: Convert to fraction form
    11,485.83/15,850.46 = 6,450.54/x
  3. Step 3: Cross multiply
    11,485.83x = 15,850.46 × 6,450.54
  4. Step 4: Simplify right side
    11,485.83x = 102,243,994.00
  5. Step 5: Solve for x
    x = 102,243,994.00/11,485.83
  6. Step 6: Final answer
    x = 8,901.75

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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.