Home / 18,611.39-25,684.88-10,653.45

Finding the Fourth Proportional to 18,611.39, 25,684.88 and 10,653.45

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Solution

The fourth proportional to 18,611.39, 25,684.88 and 10,653.45 is: 14,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.39 : 25,684.88 = 10,653.45 : x
  2. Step 2: Convert to fraction form
    18,611.39/25,684.88 = 10,653.45/x
  3. Step 3: Cross multiply
    18,611.39x = 25,684.88 × 10,653.45
  4. Step 4: Simplify right side
    18,611.39x = 273,632,531.57
  5. Step 5: Solve for x
    x = 273,632,531.57/18,611.39
  6. Step 6: Final answer
    x = 14,702.43

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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.