Home / 13,215.63-19,824.14-3,355.01

Finding the Fourth Proportional to 13,215.63, 19,824.14 and 3,355.01

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Solution

The fourth proportional to 13,215.63, 19,824.14 and 3,355.01 is: 5,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.63 : 19,824.14 = 3,355.01 : x
  2. Step 2: Convert to fraction form
    13,215.63/19,824.14 = 3,355.01/x
  3. Step 3: Cross multiply
    13,215.63x = 19,824.14 × 3,355.01
  4. Step 4: Simplify right side
    13,215.63x = 66,510,187.94
  5. Step 5: Solve for x
    x = 66,510,187.94/13,215.63
  6. Step 6: Final answer
    x = 5,032.69

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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.