Home / 19,967.76-27,555.66-11,015.55

Finding the Fourth Proportional to 19,967.76, 27,555.66 and 11,015.55

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Solution

The fourth proportional to 19,967.76, 27,555.66 and 11,015.55 is: 15,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.76 : 27,555.66 = 11,015.55 : x
  2. Step 2: Convert to fraction form
    19,967.76/27,555.66 = 11,015.55/x
  3. Step 3: Cross multiply
    19,967.76x = 27,555.66 × 11,015.55
  4. Step 4: Simplify right side
    19,967.76x = 303,540,750.51
  5. Step 5: Solve for x
    x = 303,540,750.51/19,967.76
  6. Step 6: Final answer
    x = 15,201.54

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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.