Home / 19,663.14-27,135.17-11,705.64

Finding the Fourth Proportional to 19,663.14, 27,135.17 and 11,705.64

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Solution

The fourth proportional to 19,663.14, 27,135.17 and 11,705.64 is: 16,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.14 : 27,135.17 = 11,705.64 : x
  2. Step 2: Convert to fraction form
    19,663.14/27,135.17 = 11,705.64/x
  3. Step 3: Cross multiply
    19,663.14x = 27,135.17 × 11,705.64
  4. Step 4: Simplify right side
    19,663.14x = 317,634,531.36
  5. Step 5: Solve for x
    x = 317,634,531.36/19,663.14
  6. Step 6: Final answer
    x = 16,153.81

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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.