Home / 13,500.87-18,631.26-7,532.43

Finding the Fourth Proportional to 13,500.87, 18,631.26 and 7,532.43

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Solution

The fourth proportional to 13,500.87, 18,631.26 and 7,532.43 is: 10,394.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.87 : 18,631.26 = 7,532.43 : x
  2. Step 2: Convert to fraction form
    13,500.87/18,631.26 = 7,532.43/x
  3. Step 3: Cross multiply
    13,500.87x = 18,631.26 × 7,532.43
  4. Step 4: Simplify right side
    13,500.87x = 140,338,661.76
  5. Step 5: Solve for x
    x = 140,338,661.76/13,500.87
  6. Step 6: Final answer
    x = 10,394.79

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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.