Home / 12,809.20-19,213.80-10,735.60

Finding the Fourth Proportional to 12,809.20, 19,213.80 and 10,735.60

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Solution

The fourth proportional to 12,809.20, 19,213.80 and 10,735.60 is: 16,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.20 : 19,213.80 = 10,735.60 : x
  2. Step 2: Convert to fraction form
    12,809.20/19,213.80 = 10,735.60/x
  3. Step 3: Cross multiply
    12,809.20x = 19,213.80 × 10,735.60
  4. Step 4: Simplify right side
    12,809.20x = 206,271,671.28
  5. Step 5: Solve for x
    x = 206,271,671.28/12,809.20
  6. Step 6: Final answer
    x = 16,103.40

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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.