Home / 13,968.45-20,934.86-6,556.55

Finding the Fourth Proportional to 13,968.45, 20,934.86 and 6,556.55

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Solution

The fourth proportional to 13,968.45, 20,934.86 and 6,556.55 is: 9,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.45 : 20,934.86 = 6,556.55 : x
  2. Step 2: Convert to fraction form
    13,968.45/20,934.86 = 6,556.55/x
  3. Step 3: Cross multiply
    13,968.45x = 20,934.86 × 6,556.55
  4. Step 4: Simplify right side
    13,968.45x = 137,260,318.88
  5. Step 5: Solve for x
    x = 137,260,318.88/13,968.45
  6. Step 6: Final answer
    x = 9,826.45

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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.