Home / 13,986.64-19,291.74-9,205.05

Finding the Fourth Proportional to 13,986.64, 19,291.74 and 9,205.05

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Solution

The fourth proportional to 13,986.64, 19,291.74 and 9,205.05 is: 12,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.64 : 19,291.74 = 9,205.05 : x
  2. Step 2: Convert to fraction form
    13,986.64/19,291.74 = 9,205.05/x
  3. Step 3: Cross multiply
    13,986.64x = 19,291.74 × 9,205.05
  4. Step 4: Simplify right side
    13,986.64x = 177,581,469.11
  5. Step 5: Solve for x
    x = 177,581,469.11/13,986.64
  6. Step 6: Final answer
    x = 12,696.51

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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.