Home / 15,611.08-21,540.36-9,236.20

Finding the Fourth Proportional to 15,611.08, 21,540.36 and 9,236.20

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Solution

The fourth proportional to 15,611.08, 21,540.36 and 9,236.20 is: 12,744.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.08 : 21,540.36 = 9,236.20 : x
  2. Step 2: Convert to fraction form
    15,611.08/21,540.36 = 9,236.20/x
  3. Step 3: Cross multiply
    15,611.08x = 21,540.36 × 9,236.20
  4. Step 4: Simplify right side
    15,611.08x = 198,951,073.03
  5. Step 5: Solve for x
    x = 198,951,073.03/15,611.08
  6. Step 6: Final answer
    x = 12,744.22

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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.