Home / 13,329.91-18,394.34-7,361.53

Finding the Fourth Proportional to 13,329.91, 18,394.34 and 7,361.53

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Solution

The fourth proportional to 13,329.91, 18,394.34 and 7,361.53 is: 10,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.91 : 18,394.34 = 7,361.53 : x
  2. Step 2: Convert to fraction form
    13,329.91/18,394.34 = 7,361.53/x
  3. Step 3: Cross multiply
    13,329.91x = 18,394.34 × 7,361.53
  4. Step 4: Simplify right side
    13,329.91x = 135,410,458.16
  5. Step 5: Solve for x
    x = 135,410,458.16/13,329.91
  6. Step 6: Final answer
    x = 10,158.39

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1.5x scale

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.