Home / 15,464.07-21,340.33-8,390.34

Finding the Fourth Proportional to 15,464.07, 21,340.33 and 8,390.34

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Solution

The fourth proportional to 15,464.07, 21,340.33 and 8,390.34 is: 11,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.07 : 21,340.33 = 8,390.34 : x
  2. Step 2: Convert to fraction form
    15,464.07/21,340.33 = 8,390.34/x
  3. Step 3: Cross multiply
    15,464.07x = 21,340.33 × 8,390.34
  4. Step 4: Simplify right side
    15,464.07x = 179,052,603.44
  5. Step 5: Solve for x
    x = 179,052,603.44/15,464.07
  6. Step 6: Final answer
    x = 11,578.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.