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Finding the Fourth Proportional to 8,351.28, 11,530.08 and 5,212.08

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Solution

The fourth proportional to 8,351.28, 11,530.08 and 5,212.08 is: 7,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.28 : 11,530.08 = 5,212.08 : x
  2. Step 2: Convert to fraction form
    8,351.28/11,530.08 = 5,212.08/x
  3. Step 3: Cross multiply
    8,351.28x = 11,530.08 × 5,212.08
  4. Step 4: Simplify right side
    8,351.28x = 60,095,699.37
  5. Step 5: Solve for x
    x = 60,095,699.37/8,351.28
  6. Step 6: Final answer
    x = 7,195.99

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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.