Home / 11,118.72-15,256.19-11,014.23

Finding the Fourth Proportional to 11,118.72, 15,256.19 and 11,014.23

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Solution

The fourth proportional to 11,118.72, 15,256.19 and 11,014.23 is: 15,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.72 : 15,256.19 = 11,014.23 : x
  2. Step 2: Convert to fraction form
    11,118.72/15,256.19 = 11,014.23/x
  3. Step 3: Cross multiply
    11,118.72x = 15,256.19 × 11,014.23
  4. Step 4: Simplify right side
    11,118.72x = 168,035,130.51
  5. Step 5: Solve for x
    x = 168,035,130.51/11,118.72
  6. Step 6: Final answer
    x = 15,112.81

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Half scale
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Double scale
Find fourth proportional to 11,119.72, 15,257.56 and 11,015.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.