Home / 9,828.83-13,563.87-5,579.78

Finding the Fourth Proportional to 9,828.83, 13,563.87 and 5,579.78

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Solution

The fourth proportional to 9,828.83, 13,563.87 and 5,579.78 is: 7,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,828.83 : 13,563.87 = 5,579.78 : x
  2. Step 2: Convert to fraction form
    9,828.83/13,563.87 = 5,579.78/x
  3. Step 3: Cross multiply
    9,828.83x = 13,563.87 × 5,579.78
  4. Step 4: Simplify right side
    9,828.83x = 75,683,342.73
  5. Step 5: Solve for x
    x = 75,683,342.73/9,828.83
  6. Step 6: Final answer
    x = 7,700.14

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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.