Home / 12,845.80-19,272.30-6,272.20

Finding the Fourth Proportional to 12,845.80, 19,272.30 and 6,272.20

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Solution

The fourth proportional to 12,845.80, 19,272.30 and 6,272.20 is: 9,410.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.80 : 19,272.30 = 6,272.20 : x
  2. Step 2: Convert to fraction form
    12,845.80/19,272.30 = 6,272.20/x
  3. Step 3: Cross multiply
    12,845.80x = 19,272.30 × 6,272.20
  4. Step 4: Simplify right side
    12,845.80x = 120,879,720.06
  5. Step 5: Solve for x
    x = 120,879,720.06/12,845.80
  6. Step 6: Final answer
    x = 9,410.06

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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.