Home / 18,976.22-26,162.84-15,560.65

Finding the Fourth Proportional to 18,976.22, 26,162.84 and 15,560.65

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Solution

The fourth proportional to 18,976.22, 26,162.84 and 15,560.65 is: 21,453.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.22 : 26,162.84 = 15,560.65 : x
  2. Step 2: Convert to fraction form
    18,976.22/26,162.84 = 15,560.65/x
  3. Step 3: Cross multiply
    18,976.22x = 26,162.84 × 15,560.65
  4. Step 4: Simplify right side
    18,976.22x = 407,110,796.25
  5. Step 5: Solve for x
    x = 407,110,796.25/18,976.22
  6. Step 6: Final answer
    x = 21,453.74

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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.