Home / 19,843.38-29,772.82-8,742.26

Finding the Fourth Proportional to 19,843.38, 29,772.82 and 8,742.26

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Solution

The fourth proportional to 19,843.38, 29,772.82 and 8,742.26 is: 13,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.38 : 29,772.82 = 8,742.26 : x
  2. Step 2: Convert to fraction form
    19,843.38/29,772.82 = 8,742.26/x
  3. Step 3: Cross multiply
    19,843.38x = 29,772.82 × 8,742.26
  4. Step 4: Simplify right side
    19,843.38x = 260,281,733.37
  5. Step 5: Solve for x
    x = 260,281,733.37/19,843.38
  6. Step 6: Final answer
    x = 13,116.80

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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.