Home / 13,840.93-20,751.33-5,518.45

Finding the Fourth Proportional to 13,840.93, 20,751.33 and 5,518.45

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Solution

The fourth proportional to 13,840.93, 20,751.33 and 5,518.45 is: 8,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.93 : 20,751.33 = 5,518.45 : x
  2. Step 2: Convert to fraction form
    13,840.93/20,751.33 = 5,518.45/x
  3. Step 3: Cross multiply
    13,840.93x = 20,751.33 × 5,518.45
  4. Step 4: Simplify right side
    13,840.93x = 114,515,073.28
  5. Step 5: Solve for x
    x = 114,515,073.28/13,840.93
  6. Step 6: Final answer
    x = 8,273.66

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1.5x scale

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.