Home / 7,891.24-11,832.26-3,213.50

Finding the Fourth Proportional to 7,891.24, 11,832.26 and 3,213.50

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Solution

The fourth proportional to 7,891.24, 11,832.26 and 3,213.50 is: 4,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.24 : 11,832.26 = 3,213.50 : x
  2. Step 2: Convert to fraction form
    7,891.24/11,832.26 = 3,213.50/x
  3. Step 3: Cross multiply
    7,891.24x = 11,832.26 × 3,213.50
  4. Step 4: Simplify right side
    7,891.24x = 38,022,967.51
  5. Step 5: Solve for x
    x = 38,022,967.51/7,891.24
  6. Step 6: Final answer
    x = 4,818.38

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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.