Home / 15,322.65-21,144.45-8,608.56

Finding the Fourth Proportional to 15,322.65, 21,144.45 and 8,608.56

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Solution

The fourth proportional to 15,322.65, 21,144.45 and 8,608.56 is: 11,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.65 : 21,144.45 = 8,608.56 : x
  2. Step 2: Convert to fraction form
    15,322.65/21,144.45 = 8,608.56/x
  3. Step 3: Cross multiply
    15,322.65x = 21,144.45 × 8,608.56
  4. Step 4: Simplify right side
    15,322.65x = 182,023,266.49
  5. Step 5: Solve for x
    x = 182,023,266.49/15,322.65
  6. Step 6: Final answer
    x = 11,879.36

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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.