Home / 19,578.51-27,018.09-11,196.63

Finding the Fourth Proportional to 19,578.51, 27,018.09 and 11,196.63

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Solution

The fourth proportional to 19,578.51, 27,018.09 and 11,196.63 is: 15,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.51 : 27,018.09 = 11,196.63 : x
  2. Step 2: Convert to fraction form
    19,578.51/27,018.09 = 11,196.63/x
  3. Step 3: Cross multiply
    19,578.51x = 27,018.09 × 11,196.63
  4. Step 4: Simplify right side
    19,578.51x = 302,511,557.04
  5. Step 5: Solve for x
    x = 302,511,557.04/19,578.51
  6. Step 6: Final answer
    x = 15,451.20

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Half scale
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Double scale
Find fourth proportional to 19,579.51, 27,019.47 and 11,197.63
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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.