Home / 15,166.44-20,930.40-8,880.84

Finding the Fourth Proportional to 15,166.44, 20,930.40 and 8,880.84

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Solution

The fourth proportional to 15,166.44, 20,930.40 and 8,880.84 is: 12,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166.44 : 20,930.40 = 8,880.84 : x
  2. Step 2: Convert to fraction form
    15,166.44/20,930.40 = 8,880.84/x
  3. Step 3: Cross multiply
    15,166.44x = 20,930.40 × 8,880.84
  4. Step 4: Simplify right side
    15,166.44x = 185,879,533.54
  5. Step 5: Solve for x
    x = 185,879,533.54/15,166.44
  6. Step 6: Final answer
    x = 12,255.98

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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.