Home / 9,867.20-14,795.76-2,940.80

Finding the Fourth Proportional to 9,867.20, 14,795.76 and 2,940.80

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Solution

The fourth proportional to 9,867.20, 14,795.76 and 2,940.80 is: 4,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.20 : 14,795.76 = 2,940.80 : x
  2. Step 2: Convert to fraction form
    9,867.20/14,795.76 = 2,940.80/x
  3. Step 3: Cross multiply
    9,867.20x = 14,795.76 × 2,940.80
  4. Step 4: Simplify right side
    9,867.20x = 43,511,371.01
  5. Step 5: Solve for x
    x = 43,511,371.01/9,867.20
  6. Step 6: Final answer
    x = 4,409.70

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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.