Home / 13,257.80-19,889.12-5,462.36

Finding the Fourth Proportional to 13,257.80, 19,889.12 and 5,462.36

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Solution

The fourth proportional to 13,257.80, 19,889.12 and 5,462.36 is: 8,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.80 : 19,889.12 = 5,462.36 : x
  2. Step 2: Convert to fraction form
    13,257.80/19,889.12 = 5,462.36/x
  3. Step 3: Cross multiply
    13,257.80x = 19,889.12 × 5,462.36
  4. Step 4: Simplify right side
    13,257.80x = 108,641,533.52
  5. Step 5: Solve for x
    x = 108,641,533.52/13,257.80
  6. Step 6: Final answer
    x = 8,194.54

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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.