Home / 13,131.44-19,705.36-5,340.25

Finding the Fourth Proportional to 13,131.44, 19,705.36 and 5,340.25

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Solution

The fourth proportional to 13,131.44, 19,705.36 and 5,340.25 is: 8,013.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.44 : 19,705.36 = 5,340.25 : x
  2. Step 2: Convert to fraction form
    13,131.44/19,705.36 = 5,340.25/x
  3. Step 3: Cross multiply
    13,131.44x = 19,705.36 × 5,340.25
  4. Step 4: Simplify right side
    13,131.44x = 105,231,548.74
  5. Step 5: Solve for x
    x = 105,231,548.74/13,131.44
  6. Step 6: Final answer
    x = 8,013.71

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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.