Home / 18,019.03-27,028.64-11,818.31

Finding the Fourth Proportional to 18,019.03, 27,028.64 and 11,818.31

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Solution

The fourth proportional to 18,019.03, 27,028.64 and 11,818.31 is: 17,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.03 : 27,028.64 = 11,818.31 : x
  2. Step 2: Convert to fraction form
    18,019.03/27,028.64 = 11,818.31/x
  3. Step 3: Cross multiply
    18,019.03x = 27,028.64 × 11,818.31
  4. Step 4: Simplify right side
    18,019.03x = 319,432,846.40
  5. Step 5: Solve for x
    x = 319,432,846.40/18,019.03
  6. Step 6: Final answer
    x = 17,727.53

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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.