Home / 18,128.22-25,016.31-11,066.46

Finding the Fourth Proportional to 18,128.22, 25,016.31 and 11,066.46

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Solution

The fourth proportional to 18,128.22, 25,016.31 and 11,066.46 is: 15,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.22 : 25,016.31 = 11,066.46 : x
  2. Step 2: Convert to fraction form
    18,128.22/25,016.31 = 11,066.46/x
  3. Step 3: Cross multiply
    18,128.22x = 25,016.31 × 11,066.46
  4. Step 4: Simplify right side
    18,128.22x = 276,841,993.96
  5. Step 5: Solve for x
    x = 276,841,993.96/18,128.22
  6. Step 6: Final answer
    x = 15,271.33

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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.