Home / 13,740.48-20,611.98-3,745.35

Finding the Fourth Proportional to 13,740.48, 20,611.98 and 3,745.35

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Solution

The fourth proportional to 13,740.48, 20,611.98 and 3,745.35 is: 5,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.48 : 20,611.98 = 3,745.35 : x
  2. Step 2: Convert to fraction form
    13,740.48/20,611.98 = 3,745.35/x
  3. Step 3: Cross multiply
    13,740.48x = 20,611.98 × 3,745.35
  4. Step 4: Simplify right side
    13,740.48x = 77,199,079.29
  5. Step 5: Solve for x
    x = 77,199,079.29/13,740.48
  6. Step 6: Final answer
    x = 5,618.37

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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.