Home / 8,919.10-12,309.03-4,940.58

Finding the Fourth Proportional to 8,919.10, 12,309.03 and 4,940.58

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Solution

The fourth proportional to 8,919.10, 12,309.03 and 4,940.58 is: 6,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.10 : 12,309.03 = 4,940.58 : x
  2. Step 2: Convert to fraction form
    8,919.10/12,309.03 = 4,940.58/x
  3. Step 3: Cross multiply
    8,919.10x = 12,309.03 × 4,940.58
  4. Step 4: Simplify right side
    8,919.10x = 60,813,722.73
  5. Step 5: Solve for x
    x = 60,813,722.73/8,919.10
  6. Step 6: Final answer
    x = 6,818.37

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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.