Home / 12,859.66-19,286.78-3,623.50

Finding the Fourth Proportional to 12,859.66, 19,286.78 and 3,623.50

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Solution

The fourth proportional to 12,859.66, 19,286.78 and 3,623.50 is: 5,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.66 : 19,286.78 = 3,623.50 : x
  2. Step 2: Convert to fraction form
    12,859.66/19,286.78 = 3,623.50/x
  3. Step 3: Cross multiply
    12,859.66x = 19,286.78 × 3,623.50
  4. Step 4: Simplify right side
    12,859.66x = 69,885,647.33
  5. Step 5: Solve for x
    x = 69,885,647.33/12,859.66
  6. Step 6: Final answer
    x = 5,434.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.