Home / 8,928.50-12,321.21-4,949.53

Finding the Fourth Proportional to 8,928.50, 12,321.21 and 4,949.53

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Solution

The fourth proportional to 8,928.50, 12,321.21 and 4,949.53 is: 6,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.50 : 12,321.21 = 4,949.53 : x
  2. Step 2: Convert to fraction form
    8,928.50/12,321.21 = 4,949.53/x
  3. Step 3: Cross multiply
    8,928.50x = 12,321.21 × 4,949.53
  4. Step 4: Simplify right side
    8,928.50x = 60,984,198.53
  5. Step 5: Solve for x
    x = 60,984,198.53/8,928.50
  6. Step 6: Final answer
    x = 6,830.28

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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.