Home / 9,519.87-13,137.60-5,328.11

Finding the Fourth Proportional to 9,519.87, 13,137.60 and 5,328.11

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Solution

The fourth proportional to 9,519.87, 13,137.60 and 5,328.11 is: 7,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.87 : 13,137.60 = 5,328.11 : x
  2. Step 2: Convert to fraction form
    9,519.87/13,137.60 = 5,328.11/x
  3. Step 3: Cross multiply
    9,519.87x = 13,137.60 × 5,328.11
  4. Step 4: Simplify right side
    9,519.87x = 69,998,551.30
  5. Step 5: Solve for x
    x = 69,998,551.30/9,519.87
  6. Step 6: Final answer
    x = 7,352.89

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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.