Home / 7,991.72-11,029.51-4,634.64

Finding the Fourth Proportional to 7,991.72, 11,029.51 and 4,634.64

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Solution

The fourth proportional to 7,991.72, 11,029.51 and 4,634.64 is: 6,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.72 : 11,029.51 = 4,634.64 : x
  2. Step 2: Convert to fraction form
    7,991.72/11,029.51 = 4,634.64/x
  3. Step 3: Cross multiply
    7,991.72x = 11,029.51 × 4,634.64
  4. Step 4: Simplify right side
    7,991.72x = 51,117,796.64
  5. Step 5: Solve for x
    x = 51,117,796.64/7,991.72
  6. Step 6: Final answer
    x = 6,396.34

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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.