Home / 18,640.98-25,725.60-10,684.53

Finding the Fourth Proportional to 18,640.98, 25,725.60 and 10,684.53

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Solution

The fourth proportional to 18,640.98, 25,725.60 and 10,684.53 is: 14,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.98 : 25,725.60 = 10,684.53 : x
  2. Step 2: Convert to fraction form
    18,640.98/25,725.60 = 10,684.53/x
  3. Step 3: Cross multiply
    18,640.98x = 25,725.60 × 10,684.53
  4. Step 4: Simplify right side
    18,640.98x = 274,865,944.97
  5. Step 5: Solve for x
    x = 274,865,944.97/18,640.98
  6. Step 6: Final answer
    x = 14,745.25

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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.