Home / 11,331.08-15,619.38-9,231.56

Finding the Fourth Proportional to 11,331.08, 15,619.38 and 9,231.56

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Solution

The fourth proportional to 11,331.08, 15,619.38 and 9,231.56 is: 12,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.08 : 15,619.38 = 9,231.56 : x
  2. Step 2: Convert to fraction form
    11,331.08/15,619.38 = 9,231.56/x
  3. Step 3: Cross multiply
    11,331.08x = 15,619.38 × 9,231.56
  4. Step 4: Simplify right side
    11,331.08x = 144,191,243.63
  5. Step 5: Solve for x
    x = 144,191,243.63/11,331.08
  6. Step 6: Final answer
    x = 12,725.29

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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.