Home / 13,219.21-19,828.41-4,899.03

Finding the Fourth Proportional to 13,219.21, 19,828.41 and 4,899.03

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Solution

The fourth proportional to 13,219.21, 19,828.41 and 4,899.03 is: 7,348.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.21 : 19,828.41 = 4,899.03 : x
  2. Step 2: Convert to fraction form
    13,219.21/19,828.41 = 4,899.03/x
  3. Step 3: Cross multiply
    13,219.21x = 19,828.41 × 4,899.03
  4. Step 4: Simplify right side
    13,219.21x = 97,139,975.44
  5. Step 5: Solve for x
    x = 97,139,975.44/13,219.21
  6. Step 6: Final answer
    x = 7,348.39

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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.