Home / 13,112.24-19,668.48-3,878.24

Finding the Fourth Proportional to 13,112.24, 19,668.48 and 3,878.24

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Solution

The fourth proportional to 13,112.24, 19,668.48 and 3,878.24 is: 5,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.24 : 19,668.48 = 3,878.24 : x
  2. Step 2: Convert to fraction form
    13,112.24/19,668.48 = 3,878.24/x
  3. Step 3: Cross multiply
    13,112.24x = 19,668.48 × 3,878.24
  4. Step 4: Simplify right side
    13,112.24x = 76,279,085.88
  5. Step 5: Solve for x
    x = 76,279,085.88/13,112.24
  6. Step 6: Final answer
    x = 5,817.40

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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.