Home / 12,841.20-19,261.80-3,607.20

Finding the Fourth Proportional to 12,841.20, 19,261.80 and 3,607.20

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Solution

The fourth proportional to 12,841.20, 19,261.80 and 3,607.20 is: 5,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.20 : 19,261.80 = 3,607.20 : x
  2. Step 2: Convert to fraction form
    12,841.20/19,261.80 = 3,607.20/x
  3. Step 3: Cross multiply
    12,841.20x = 19,261.80 × 3,607.20
  4. Step 4: Simplify right side
    12,841.20x = 69,481,164.96
  5. Step 5: Solve for x
    x = 69,481,164.96/12,841.20
  6. Step 6: Final answer
    x = 5,410.80

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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.