Home / 13,219.41-19,828.81-3,859.05

Finding the Fourth Proportional to 13,219.41, 19,828.81 and 3,859.05

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Solution

The fourth proportional to 13,219.41, 19,828.81 and 3,859.05 is: 5,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.41 : 19,828.81 = 3,859.05 : x
  2. Step 2: Convert to fraction form
    13,219.41/19,828.81 = 3,859.05/x
  3. Step 3: Cross multiply
    13,219.41x = 19,828.81 × 3,859.05
  4. Step 4: Simplify right side
    13,219.41x = 76,520,369.23
  5. Step 5: Solve for x
    x = 76,520,369.23/13,219.41
  6. Step 6: Final answer
    x = 5,788.49

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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.