Home / 18,911.64-28,351.26-7,233.06

Finding the Fourth Proportional to 18,911.64, 28,351.26 and 7,233.06

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Solution

The fourth proportional to 18,911.64, 28,351.26 and 7,233.06 is: 10,843.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.64 : 28,351.26 = 7,233.06 : x
  2. Step 2: Convert to fraction form
    18,911.64/28,351.26 = 7,233.06/x
  3. Step 3: Cross multiply
    18,911.64x = 28,351.26 × 7,233.06
  4. Step 4: Simplify right side
    18,911.64x = 205,066,364.66
  5. Step 5: Solve for x
    x = 205,066,364.66/18,911.64
  6. Step 6: Final answer
    x = 10,843.39

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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.