Home / 10,926.90-16,390.44-6,778.98

Finding the Fourth Proportional to 10,926.90, 16,390.44 and 6,778.98

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Solution

The fourth proportional to 10,926.90, 16,390.44 and 6,778.98 is: 10,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.90 : 16,390.44 = 6,778.98 : x
  2. Step 2: Convert to fraction form
    10,926.90/16,390.44 = 6,778.98/x
  3. Step 3: Cross multiply
    10,926.90x = 16,390.44 × 6,778.98
  4. Step 4: Simplify right side
    10,926.90x = 111,110,464.95
  5. Step 5: Solve for x
    x = 111,110,464.95/10,926.90
  6. Step 6: Final answer
    x = 10,168.53

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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.