Home / 15,682.44-21,641.40-8,608.80

Finding the Fourth Proportional to 15,682.44, 21,641.40 and 8,608.80

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Solution

The fourth proportional to 15,682.44, 21,641.40 and 8,608.80 is: 11,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.44 : 21,641.40 = 8,608.80 : x
  2. Step 2: Convert to fraction form
    15,682.44/21,641.40 = 8,608.80/x
  3. Step 3: Cross multiply
    15,682.44x = 21,641.40 × 8,608.80
  4. Step 4: Simplify right side
    15,682.44x = 186,306,484.32
  5. Step 5: Solve for x
    x = 186,306,484.32/15,682.44
  6. Step 6: Final answer
    x = 11,879.94

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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.