Home / 13,910.43-19,185.92-9,661.50

Finding the Fourth Proportional to 13,910.43, 19,185.92 and 9,661.50

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Solution

The fourth proportional to 13,910.43, 19,185.92 and 9,661.50 is: 13,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.43 : 19,185.92 = 9,661.50 : x
  2. Step 2: Convert to fraction form
    13,910.43/19,185.92 = 9,661.50/x
  3. Step 3: Cross multiply
    13,910.43x = 19,185.92 × 9,661.50
  4. Step 4: Simplify right side
    13,910.43x = 185,364,790.23
  5. Step 5: Solve for x
    x = 185,364,790.23/13,910.43
  6. Step 6: Final answer
    x = 13,325.60

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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.