Home / 12,724.92-19,089.90-9,028.44

Finding the Fourth Proportional to 12,724.92, 19,089.90 and 9,028.44

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Solution

The fourth proportional to 12,724.92, 19,089.90 and 9,028.44 is: 13,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.92 : 19,089.90 = 9,028.44 : x
  2. Step 2: Convert to fraction form
    12,724.92/19,089.90 = 9,028.44/x
  3. Step 3: Cross multiply
    12,724.92x = 19,089.90 × 9,028.44
  4. Step 4: Simplify right side
    12,724.92x = 172,352,016.76
  5. Step 5: Solve for x
    x = 172,352,016.76/12,724.92
  6. Step 6: Final answer
    x = 13,544.45

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1.5x scale

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.