Home / 19,112.14-28,656.98-5,781.12

Finding the Fourth Proportional to 19,112.14, 28,656.98 and 5,781.12

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Solution

The fourth proportional to 19,112.14, 28,656.98 and 5,781.12 is: 8,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.14 : 28,656.98 = 5,781.12 : x
  2. Step 2: Convert to fraction form
    19,112.14/28,656.98 = 5,781.12/x
  3. Step 3: Cross multiply
    19,112.14x = 28,656.98 × 5,781.12
  4. Step 4: Simplify right side
    19,112.14x = 165,669,296.93
  5. Step 5: Solve for x
    x = 165,669,296.93/19,112.14
  6. Step 6: Final answer
    x = 8,668.28

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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.