Home / 11,272.10-16,908.30-5,427.36

Finding the Fourth Proportional to 11,272.10, 16,908.30 and 5,427.36

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Solution

The fourth proportional to 11,272.10, 16,908.30 and 5,427.36 is: 8,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.10 : 16,908.30 = 5,427.36 : x
  2. Step 2: Convert to fraction form
    11,272.10/16,908.30 = 5,427.36/x
  3. Step 3: Cross multiply
    11,272.10x = 16,908.30 × 5,427.36
  4. Step 4: Simplify right side
    11,272.10x = 91,767,431.09
  5. Step 5: Solve for x
    x = 91,767,431.09/11,272.10
  6. Step 6: Final answer
    x = 8,141.12

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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.