Home / 12,220.36-18,329.10-5,466.76

Finding the Fourth Proportional to 12,220.36, 18,329.10 and 5,466.76

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Solution

The fourth proportional to 12,220.36, 18,329.10 and 5,466.76 is: 8,199.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.36 : 18,329.10 = 5,466.76 : x
  2. Step 2: Convert to fraction form
    12,220.36/18,329.10 = 5,466.76/x
  3. Step 3: Cross multiply
    12,220.36x = 18,329.10 × 5,466.76
  4. Step 4: Simplify right side
    12,220.36x = 100,200,790.72
  5. Step 5: Solve for x
    x = 100,200,790.72/12,220.36
  6. Step 6: Final answer
    x = 8,199.50

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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.