Home / 8,928.11-12,320.96-4,949.60

Finding the Fourth Proportional to 8,928.11, 12,320.96 and 4,949.60

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Solution

The fourth proportional to 8,928.11, 12,320.96 and 4,949.60 is: 6,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.11 : 12,320.96 = 4,949.60 : x
  2. Step 2: Convert to fraction form
    8,928.11/12,320.96 = 4,949.60/x
  3. Step 3: Cross multiply
    8,928.11x = 12,320.96 × 4,949.60
  4. Step 4: Simplify right side
    8,928.11x = 60,983,737.26
  5. Step 5: Solve for x
    x = 60,983,737.26/8,928.11
  6. Step 6: Final answer
    x = 6,830.54

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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.