Home / 13,449.18-20,173.65-7,940.82

Finding the Fourth Proportional to 13,449.18, 20,173.65 and 7,940.82

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Solution

The fourth proportional to 13,449.18, 20,173.65 and 7,940.82 is: 11,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.18 : 20,173.65 = 7,940.82 : x
  2. Step 2: Convert to fraction form
    13,449.18/20,173.65 = 7,940.82/x
  3. Step 3: Cross multiply
    13,449.18x = 20,173.65 × 7,940.82
  4. Step 4: Simplify right side
    13,449.18x = 160,195,323.39
  5. Step 5: Solve for x
    x = 160,195,323.39/13,449.18
  6. Step 6: Final answer
    x = 11,911.16

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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.