Home / 9,940.40-14,901.60-5,491.28

Finding the Fourth Proportional to 9,940.40, 14,901.60 and 5,491.28

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Solution

The fourth proportional to 9,940.40, 14,901.60 and 5,491.28 is: 8,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.40 : 14,901.60 = 5,491.28 : x
  2. Step 2: Convert to fraction form
    9,940.40/14,901.60 = 5,491.28/x
  3. Step 3: Cross multiply
    9,940.40x = 14,901.60 × 5,491.28
  4. Step 4: Simplify right side
    9,940.40x = 81,828,858.05
  5. Step 5: Solve for x
    x = 81,828,858.05/9,940.40
  6. Step 6: Final answer
    x = 8,231.95

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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.