Home / 19,255.03-28,834.35-12,213.70

Finding the Fourth Proportional to 19,255.03, 28,834.35 and 12,213.70

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Solution

The fourth proportional to 19,255.03, 28,834.35 and 12,213.70 is: 18,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.03 : 28,834.35 = 12,213.70 : x
  2. Step 2: Convert to fraction form
    19,255.03/28,834.35 = 12,213.70/x
  3. Step 3: Cross multiply
    19,255.03x = 28,834.35 × 12,213.70
  4. Step 4: Simplify right side
    19,255.03x = 352,174,100.60
  5. Step 5: Solve for x
    x = 352,174,100.60/19,255.03
  6. Step 6: Final answer
    x = 18,289.98

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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.