Home / 13,391.07-18,460.10-10,198.96

Finding the Fourth Proportional to 13,391.07, 18,460.10 and 10,198.96

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Solution

The fourth proportional to 13,391.07, 18,460.10 and 10,198.96 is: 14,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.07 : 18,460.10 = 10,198.96 : x
  2. Step 2: Convert to fraction form
    13,391.07/18,460.10 = 10,198.96/x
  3. Step 3: Cross multiply
    13,391.07x = 18,460.10 × 10,198.96
  4. Step 4: Simplify right side
    13,391.07x = 188,273,904.68
  5. Step 5: Solve for x
    x = 188,273,904.68/13,391.07
  6. Step 6: Final answer
    x = 14,059.66

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1.5x scale

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.