Home / 19,519.74-26,928.37-12,441.75

Finding the Fourth Proportional to 19,519.74, 26,928.37 and 12,441.75

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Solution

The fourth proportional to 19,519.74, 26,928.37 and 12,441.75 is: 17,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.74 : 26,928.37 = 12,441.75 : x
  2. Step 2: Convert to fraction form
    19,519.74/26,928.37 = 12,441.75/x
  3. Step 3: Cross multiply
    19,519.74x = 26,928.37 × 12,441.75
  4. Step 4: Simplify right side
    19,519.74x = 335,036,047.45
  5. Step 5: Solve for x
    x = 335,036,047.45/19,519.74
  6. Step 6: Final answer
    x = 17,163.96

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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.