Home / 18,968.64-26,176.80-11,015.52

Finding the Fourth Proportional to 18,968.64, 26,176.80 and 11,015.52

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Solution

The fourth proportional to 18,968.64, 26,176.80 and 11,015.52 is: 15,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.64 : 26,176.80 = 11,015.52 : x
  2. Step 2: Convert to fraction form
    18,968.64/26,176.80 = 11,015.52/x
  3. Step 3: Cross multiply
    18,968.64x = 26,176.80 × 11,015.52
  4. Step 4: Simplify right side
    18,968.64x = 288,351,063.94
  5. Step 5: Solve for x
    x = 288,351,063.94/18,968.64
  6. Step 6: Final answer
    x = 15,201.46

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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.