Home / 13,219.38-19,848.51-5,443.38

Finding the Fourth Proportional to 13,219.38, 19,848.51 and 5,443.38

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Solution

The fourth proportional to 13,219.38, 19,848.51 and 5,443.38 is: 8,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.38 : 19,848.51 = 5,443.38 : x
  2. Step 2: Convert to fraction form
    13,219.38/19,848.51 = 5,443.38/x
  3. Step 3: Cross multiply
    13,219.38x = 19,848.51 × 5,443.38
  4. Step 4: Simplify right side
    13,219.38x = 108,042,982.36
  5. Step 5: Solve for x
    x = 108,042,982.36/13,219.38
  6. Step 6: Final answer
    x = 8,173.07

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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.