Home / 15,684.66-21,644.57-8,611.04

Finding the Fourth Proportional to 15,684.66, 21,644.57 and 8,611.04

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Solution

The fourth proportional to 15,684.66, 21,644.57 and 8,611.04 is: 11,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.66 : 21,644.57 = 8,611.04 : x
  2. Step 2: Convert to fraction form
    15,684.66/21,644.57 = 8,611.04/x
  3. Step 3: Cross multiply
    15,684.66x = 21,644.57 × 8,611.04
  4. Step 4: Simplify right side
    15,684.66x = 186,382,106.77
  5. Step 5: Solve for x
    x = 186,382,106.77/15,684.66
  6. Step 6: Final answer
    x = 11,883.08

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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.