Home / 10,940.76-16,416.50-6,779.66

Finding the Fourth Proportional to 10,940.76, 16,416.50 and 6,779.66

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Solution

The fourth proportional to 10,940.76, 16,416.50 and 6,779.66 is: 10,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.76 : 16,416.50 = 6,779.66 : x
  2. Step 2: Convert to fraction form
    10,940.76/16,416.50 = 6,779.66/x
  3. Step 3: Cross multiply
    10,940.76x = 16,416.50 × 6,779.66
  4. Step 4: Simplify right side
    10,940.76x = 111,298,172.41
  5. Step 5: Solve for x
    x = 111,298,172.41/10,940.76
  6. Step 6: Final answer
    x = 10,172.80

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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.