Home / 18,725.09-28,099.71-12,060.89

Finding the Fourth Proportional to 18,725.09, 28,099.71 and 12,060.89

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Solution

The fourth proportional to 18,725.09, 28,099.71 and 12,060.89 is: 18,099.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.09 : 28,099.71 = 12,060.89 : x
  2. Step 2: Convert to fraction form
    18,725.09/28,099.71 = 12,060.89/x
  3. Step 3: Cross multiply
    18,725.09x = 28,099.71 × 12,060.89
  4. Step 4: Simplify right side
    18,725.09x = 338,907,370.84
  5. Step 5: Solve for x
    x = 338,907,370.84/18,725.09
  6. Step 6: Final answer
    x = 18,099.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.