Home / 19,866.70-29,812.61-11,107.36

Finding the Fourth Proportional to 19,866.70, 29,812.61 and 11,107.36

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Solution

The fourth proportional to 19,866.70, 29,812.61 and 11,107.36 is: 16,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.70 : 29,812.61 = 11,107.36 : x
  2. Step 2: Convert to fraction form
    19,866.70/29,812.61 = 11,107.36/x
  3. Step 3: Cross multiply
    19,866.70x = 29,812.61 × 11,107.36
  4. Step 4: Simplify right side
    19,866.70x = 331,139,394.36
  5. Step 5: Solve for x
    x = 331,139,394.36/19,866.70
  6. Step 6: Final answer
    x = 16,668.06

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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.