Home / 10,778.22-16,136.10-6,605.64

Finding the Fourth Proportional to 10,778.22, 16,136.10 and 6,605.64

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Solution

The fourth proportional to 10,778.22, 16,136.10 and 6,605.64 is: 9,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.22 : 16,136.10 = 6,605.64 : x
  2. Step 2: Convert to fraction form
    10,778.22/16,136.10 = 6,605.64/x
  3. Step 3: Cross multiply
    10,778.22x = 16,136.10 × 6,605.64
  4. Step 4: Simplify right side
    10,778.22x = 106,589,267.60
  5. Step 5: Solve for x
    x = 106,589,267.60/10,778.22
  6. Step 6: Final answer
    x = 9,889.32

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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.