Home / 13,173.36-19,734.12-8,728.08

Finding the Fourth Proportional to 13,173.36, 19,734.12 and 8,728.08

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Solution

The fourth proportional to 13,173.36, 19,734.12 and 8,728.08 is: 13,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.36 : 19,734.12 = 8,728.08 : x
  2. Step 2: Convert to fraction form
    13,173.36/19,734.12 = 8,728.08/x
  3. Step 3: Cross multiply
    13,173.36x = 19,734.12 × 8,728.08
  4. Step 4: Simplify right side
    13,173.36x = 172,240,978.09
  5. Step 5: Solve for x
    x = 172,240,978.09/13,173.36
  6. Step 6: Final answer
    x = 13,074.95

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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.