Home / 15,619.37-21,554.82-8,449.29

Finding the Fourth Proportional to 15,619.37, 21,554.82 and 8,449.29

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Solution

The fourth proportional to 15,619.37, 21,554.82 and 8,449.29 is: 11,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.37 : 21,554.82 = 8,449.29 : x
  2. Step 2: Convert to fraction form
    15,619.37/21,554.82 = 8,449.29/x
  3. Step 3: Cross multiply
    15,619.37x = 21,554.82 × 8,449.29
  4. Step 4: Simplify right side
    15,619.37x = 182,122,925.08
  5. Step 5: Solve for x
    x = 182,122,925.08/15,619.37
  6. Step 6: Final answer
    x = 11,660.07

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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.