Home / 13,271.54-19,900.85-7,726.82

Finding the Fourth Proportional to 13,271.54, 19,900.85 and 7,726.82

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Solution

The fourth proportional to 13,271.54, 19,900.85 and 7,726.82 is: 11,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.54 : 19,900.85 = 7,726.82 : x
  2. Step 2: Convert to fraction form
    13,271.54/19,900.85 = 7,726.82/x
  3. Step 3: Cross multiply
    13,271.54x = 19,900.85 × 7,726.82
  4. Step 4: Simplify right side
    13,271.54x = 153,770,147.66
  5. Step 5: Solve for x
    x = 153,770,147.66/13,271.54
  6. Step 6: Final answer
    x = 11,586.46

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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.