Home / 11,150.94-15,388.28-6,435.22

Finding the Fourth Proportional to 11,150.94, 15,388.28 and 6,435.22

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Solution

The fourth proportional to 11,150.94, 15,388.28 and 6,435.22 is: 8,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.94 : 15,388.28 = 6,435.22 : x
  2. Step 2: Convert to fraction form
    11,150.94/15,388.28 = 6,435.22/x
  3. Step 3: Cross multiply
    11,150.94x = 15,388.28 × 6,435.22
  4. Step 4: Simplify right side
    11,150.94x = 99,026,949.56
  5. Step 5: Solve for x
    x = 99,026,949.56/11,150.94
  6. Step 6: Final answer
    x = 8,880.59

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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.