Home / 13,015.78-19,523.49-3,155.14

Finding the Fourth Proportional to 13,015.78, 19,523.49 and 3,155.14

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Solution

The fourth proportional to 13,015.78, 19,523.49 and 3,155.14 is: 4,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.78 : 19,523.49 = 3,155.14 : x
  2. Step 2: Convert to fraction form
    13,015.78/19,523.49 = 3,155.14/x
  3. Step 3: Cross multiply
    13,015.78x = 19,523.49 × 3,155.14
  4. Step 4: Simplify right side
    13,015.78x = 61,599,344.24
  5. Step 5: Solve for x
    x = 61,599,344.24/13,015.78
  6. Step 6: Final answer
    x = 4,732.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.