Home / 15,684.14-21,644.70-8,611.22

Finding the Fourth Proportional to 15,684.14, 21,644.70 and 8,611.22

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Solution

The fourth proportional to 15,684.14, 21,644.70 and 8,611.22 is: 11,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.14 : 21,644.70 = 8,611.22 : x
  2. Step 2: Convert to fraction form
    15,684.14/21,644.70 = 8,611.22/x
  3. Step 3: Cross multiply
    15,684.14x = 21,644.70 × 8,611.22
  4. Step 4: Simplify right side
    15,684.14x = 186,387,273.53
  5. Step 5: Solve for x
    x = 186,387,273.53/15,684.14
  6. Step 6: Final answer
    x = 11,883.81

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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.