Home / 11,518.36-17,259.54-8,015.21

Finding the Fourth Proportional to 11,518.36, 17,259.54 and 8,015.21

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Solution

The fourth proportional to 11,518.36, 17,259.54 and 8,015.21 is: 12,010.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.36 : 17,259.54 = 8,015.21 : x
  2. Step 2: Convert to fraction form
    11,518.36/17,259.54 = 8,015.21/x
  3. Step 3: Cross multiply
    11,518.36x = 17,259.54 × 8,015.21
  4. Step 4: Simplify right side
    11,518.36x = 138,338,837.60
  5. Step 5: Solve for x
    x = 138,338,837.60/11,518.36
  6. Step 6: Final answer
    x = 12,010.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.