Home / 11,481.36-15,844.05-6,445.18

Finding the Fourth Proportional to 11,481.36, 15,844.05 and 6,445.18

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Solution

The fourth proportional to 11,481.36, 15,844.05 and 6,445.18 is: 8,894.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.36 : 15,844.05 = 6,445.18 : x
  2. Step 2: Convert to fraction form
    11,481.36/15,844.05 = 6,445.18/x
  3. Step 3: Cross multiply
    11,481.36x = 15,844.05 × 6,445.18
  4. Step 4: Simplify right side
    11,481.36x = 102,117,754.18
  5. Step 5: Solve for x
    x = 102,117,754.18/11,481.36
  6. Step 6: Final answer
    x = 8,894.22

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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.