Home / 15,322.30-21,144.86-8,608.22

Finding the Fourth Proportional to 15,322.30, 21,144.86 and 8,608.22

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Solution

The fourth proportional to 15,322.30, 21,144.86 and 8,608.22 is: 11,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.30 : 21,144.86 = 8,608.22 : x
  2. Step 2: Convert to fraction form
    15,322.30/21,144.86 = 8,608.22/x
  3. Step 3: Cross multiply
    15,322.30x = 21,144.86 × 8,608.22
  4. Step 4: Simplify right side
    15,322.30x = 182,019,606.75
  5. Step 5: Solve for x
    x = 182,019,606.75/15,322.30
  6. Step 6: Final answer
    x = 11,879.39

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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.