Home / 19,378.41-26,723.84-12,669.79

Finding the Fourth Proportional to 19,378.41, 26,723.84 and 12,669.79

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Solution

The fourth proportional to 19,378.41, 26,723.84 and 12,669.79 is: 17,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.41 : 26,723.84 = 12,669.79 : x
  2. Step 2: Convert to fraction form
    19,378.41/26,723.84 = 12,669.79/x
  3. Step 3: Cross multiply
    19,378.41x = 26,723.84 × 12,669.79
  4. Step 4: Simplify right side
    19,378.41x = 338,585,310.64
  5. Step 5: Solve for x
    x = 338,585,310.64/19,378.41
  6. Step 6: Final answer
    x = 17,472.30

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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.