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Finding the Fourth Proportional to 7,929, 11,933.28 and 5,964.81

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Solution

The fourth proportional to 7,929, 11,933.28 and 5,964.81 is: 8,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929 : 11,933.28 = 5,964.81 : x
  2. Step 2: Convert to fraction form
    7,929/11,933.28 = 5,964.81/x
  3. Step 3: Cross multiply
    7,929x = 11,933.28 × 5,964.81
  4. Step 4: Simplify right side
    7,929x = 71,179,747.88
  5. Step 5: Solve for x
    x = 71,179,747.88/7,929
  6. Step 6: Final answer
    x = 8,977.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.