Home / 11,492.06-15,859.26-6,388.05

Finding the Fourth Proportional to 11,492.06, 15,859.26 and 6,388.05

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Solution

The fourth proportional to 11,492.06, 15,859.26 and 6,388.05 is: 8,815.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,492.06 : 15,859.26 = 6,388.05 : x
  2. Step 2: Convert to fraction form
    11,492.06/15,859.26 = 6,388.05/x
  3. Step 3: Cross multiply
    11,492.06x = 15,859.26 × 6,388.05
  4. Step 4: Simplify right side
    11,492.06x = 101,309,781.36
  5. Step 5: Solve for x
    x = 101,309,781.36/11,492.06
  6. Step 6: Final answer
    x = 8,815.63

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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.