Home / 13,256.20-19,884.30-12,608.20

Finding the Fourth Proportional to 13,256.20, 19,884.30 and 12,608.20

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Solution

The fourth proportional to 13,256.20, 19,884.30 and 12,608.20 is: 18,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.20 : 19,884.30 = 12,608.20 : x
  2. Step 2: Convert to fraction form
    13,256.20/19,884.30 = 12,608.20/x
  3. Step 3: Cross multiply
    13,256.20x = 19,884.30 × 12,608.20
  4. Step 4: Simplify right side
    13,256.20x = 250,705,231.26
  5. Step 5: Solve for x
    x = 250,705,231.26/13,256.20
  6. Step 6: Final answer
    x = 18,912.30

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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.