Home / 13,111.76-19,668.74-3,751.80

Finding the Fourth Proportional to 13,111.76, 19,668.74 and 3,751.80

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Solution

The fourth proportional to 13,111.76, 19,668.74 and 3,751.80 is: 5,628.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.76 : 19,668.74 = 3,751.80 : x
  2. Step 2: Convert to fraction form
    13,111.76/19,668.74 = 3,751.80/x
  3. Step 3: Cross multiply
    13,111.76x = 19,668.74 × 3,751.80
  4. Step 4: Simplify right side
    13,111.76x = 73,793,178.73
  5. Step 5: Solve for x
    x = 73,793,178.73/13,111.76
  6. Step 6: Final answer
    x = 5,628.01

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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.