Home / 19,388.51-29,081.60-6,907.87

Finding the Fourth Proportional to 19,388.51, 29,081.60 and 6,907.87

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Solution

The fourth proportional to 19,388.51, 29,081.60 and 6,907.87 is: 10,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.51 : 29,081.60 = 6,907.87 : x
  2. Step 2: Convert to fraction form
    19,388.51/29,081.60 = 6,907.87/x
  3. Step 3: Cross multiply
    19,388.51x = 29,081.60 × 6,907.87
  4. Step 4: Simplify right side
    19,388.51x = 200,891,856.76
  5. Step 5: Solve for x
    x = 200,891,856.76/19,388.51
  6. Step 6: Final answer
    x = 10,361.39

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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.