Home / 13,619.31-18,796.10-8,244.69

Finding the Fourth Proportional to 13,619.31, 18,796.10 and 8,244.69

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Solution

The fourth proportional to 13,619.31, 18,796.10 and 8,244.69 is: 11,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.31 : 18,796.10 = 8,244.69 : x
  2. Step 2: Convert to fraction form
    13,619.31/18,796.10 = 8,244.69/x
  3. Step 3: Cross multiply
    13,619.31x = 18,796.10 × 8,244.69
  4. Step 4: Simplify right side
    13,619.31x = 154,967,952.38
  5. Step 5: Solve for x
    x = 154,967,952.38/13,619.31
  6. Step 6: Final answer
    x = 11,378.54

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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.