Home / 13,005.14-19,509.74-4,238.02

Finding the Fourth Proportional to 13,005.14, 19,509.74 and 4,238.02

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Solution

The fourth proportional to 13,005.14, 19,509.74 and 4,238.02 is: 6,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.14 : 19,509.74 = 4,238.02 : x
  2. Step 2: Convert to fraction form
    13,005.14/19,509.74 = 4,238.02/x
  3. Step 3: Cross multiply
    13,005.14x = 19,509.74 × 4,238.02
  4. Step 4: Simplify right side
    13,005.14x = 82,682,549.58
  5. Step 5: Solve for x
    x = 82,682,549.58/13,005.14
  6. Step 6: Final answer
    x = 6,357.68

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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.