Home / 13,774.44-19,008.92-8,109.20

Finding the Fourth Proportional to 13,774.44, 19,008.92 and 8,109.20

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Solution

The fourth proportional to 13,774.44, 19,008.92 and 8,109.20 is: 11,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.44 : 19,008.92 = 8,109.20 : x
  2. Step 2: Convert to fraction form
    13,774.44/19,008.92 = 8,109.20/x
  3. Step 3: Cross multiply
    13,774.44x = 19,008.92 × 8,109.20
  4. Step 4: Simplify right side
    13,774.44x = 154,147,134.06
  5. Step 5: Solve for x
    x = 154,147,134.06/13,774.44
  6. Step 6: Final answer
    x = 11,190.81

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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.