Home / 12,220.44-16,866.01-7,744.60

Finding the Fourth Proportional to 12,220.44, 16,866.01 and 7,744.60

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Solution

The fourth proportional to 12,220.44, 16,866.01 and 7,744.60 is: 10,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.44 : 16,866.01 = 7,744.60 : x
  2. Step 2: Convert to fraction form
    12,220.44/16,866.01 = 7,744.60/x
  3. Step 3: Cross multiply
    12,220.44x = 16,866.01 × 7,744.60
  4. Step 4: Simplify right side
    12,220.44x = 130,620,377.99
  5. Step 5: Solve for x
    x = 130,620,377.99/12,220.44
  6. Step 6: Final answer
    x = 10,688.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.