Home / 15,639.75-21,584.94-8,923.84

Finding the Fourth Proportional to 15,639.75, 21,584.94 and 8,923.84

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Solution

The fourth proportional to 15,639.75, 21,584.94 and 8,923.84 is: 12,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.75 : 21,584.94 = 8,923.84 : x
  2. Step 2: Convert to fraction form
    15,639.75/21,584.94 = 8,923.84/x
  3. Step 3: Cross multiply
    15,639.75x = 21,584.94 × 8,923.84
  4. Step 4: Simplify right side
    15,639.75x = 192,620,504.01
  5. Step 5: Solve for x
    x = 192,620,504.01/15,639.75
  6. Step 6: Final answer
    x = 12,316.08

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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.