Home / 9,940.80-14,919.84-4,101.60

Finding the Fourth Proportional to 9,940.80, 14,919.84 and 4,101.60

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Solution

The fourth proportional to 9,940.80, 14,919.84 and 4,101.60 is: 6,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.80 : 14,919.84 = 4,101.60 : x
  2. Step 2: Convert to fraction form
    9,940.80/14,919.84 = 4,101.60/x
  3. Step 3: Cross multiply
    9,940.80x = 14,919.84 × 4,101.60
  4. Step 4: Simplify right side
    9,940.80x = 61,195,215.74
  5. Step 5: Solve for x
    x = 61,195,215.74/9,940.80
  6. Step 6: Final answer
    x = 6,155.96

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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.