Home / 14,180.40-21,270.60-12,819.60

Finding the Fourth Proportional to 14,180.40, 21,270.60 and 12,819.60

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Solution

The fourth proportional to 14,180.40, 21,270.60 and 12,819.60 is: 19,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.40 : 21,270.60 = 12,819.60 : x
  2. Step 2: Convert to fraction form
    14,180.40/21,270.60 = 12,819.60/x
  3. Step 3: Cross multiply
    14,180.40x = 21,270.60 × 12,819.60
  4. Step 4: Simplify right side
    14,180.40x = 272,680,583.76
  5. Step 5: Solve for x
    x = 272,680,583.76/14,180.40
  6. Step 6: Final answer
    x = 19,229.40

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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.