Home / 13,100.40-18,057.33-11,394.54

Finding the Fourth Proportional to 13,100.40, 18,057.33 and 11,394.54

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Solution

The fourth proportional to 13,100.40, 18,057.33 and 11,394.54 is: 15,706.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.40 : 18,057.33 = 11,394.54 : x
  2. Step 2: Convert to fraction form
    13,100.40/18,057.33 = 11,394.54/x
  3. Step 3: Cross multiply
    13,100.40x = 18,057.33 × 11,394.54
  4. Step 4: Simplify right side
    13,100.40x = 205,754,968.98
  5. Step 5: Solve for x
    x = 205,754,968.98/13,100.40
  6. Step 6: Final answer
    x = 15,706.01

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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.