Home / 19,112.51-26,368.89-11,555.97

Finding the Fourth Proportional to 19,112.51, 26,368.89 and 11,555.97

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Solution

The fourth proportional to 19,112.51, 26,368.89 and 11,555.97 is: 15,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.51 : 26,368.89 = 11,555.97 : x
  2. Step 2: Convert to fraction form
    19,112.51/26,368.89 = 11,555.97/x
  3. Step 3: Cross multiply
    19,112.51x = 26,368.89 × 11,555.97
  4. Step 4: Simplify right side
    19,112.51x = 304,718,101.77
  5. Step 5: Solve for x
    x = 304,718,101.77/19,112.51
  6. Step 6: Final answer
    x = 15,943.39

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Half scale
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Double scale
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Similar ratio
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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.