Home / 12,855.66-19,283.91-4,422.08

Finding the Fourth Proportional to 12,855.66, 19,283.91 and 4,422.08

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Solution

The fourth proportional to 12,855.66, 19,283.91 and 4,422.08 is: 6,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.66 : 19,283.91 = 4,422.08 : x
  2. Step 2: Convert to fraction form
    12,855.66/19,283.91 = 4,422.08/x
  3. Step 3: Cross multiply
    12,855.66x = 19,283.91 × 4,422.08
  4. Step 4: Simplify right side
    12,855.66x = 85,274,934.54
  5. Step 5: Solve for x
    x = 85,274,934.54/12,855.66
  6. Step 6: Final answer
    x = 6,633.26

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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.