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Finding the Fourth Proportional to 7,662.77, 11,483.46 and 4,145.21

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Solution

The fourth proportional to 7,662.77, 11,483.46 and 4,145.21 is: 6,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.77 : 11,483.46 = 4,145.21 : x
  2. Step 2: Convert to fraction form
    7,662.77/11,483.46 = 4,145.21/x
  3. Step 3: Cross multiply
    7,662.77x = 11,483.46 × 4,145.21
  4. Step 4: Simplify right side
    7,662.77x = 47,601,295.81
  5. Step 5: Solve for x
    x = 47,601,295.81/7,662.77
  6. Step 6: Final answer
    x = 6,212.03

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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.