Home / 14,021.82-19,350.77-8,355.29

Finding the Fourth Proportional to 14,021.82, 19,350.77 and 8,355.29

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Solution

The fourth proportional to 14,021.82, 19,350.77 and 8,355.29 is: 11,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.82 : 19,350.77 = 8,355.29 : x
  2. Step 2: Convert to fraction form
    14,021.82/19,350.77 = 8,355.29/x
  3. Step 3: Cross multiply
    14,021.82x = 19,350.77 × 8,355.29
  4. Step 4: Simplify right side
    14,021.82x = 161,681,156.54
  5. Step 5: Solve for x
    x = 161,681,156.54/14,021.82
  6. Step 6: Final answer
    x = 11,530.68

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.