Home / 13,230.54-18,257.52-7,180.64

Finding the Fourth Proportional to 13,230.54, 18,257.52 and 7,180.64

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Solution

The fourth proportional to 13,230.54, 18,257.52 and 7,180.64 is: 9,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.54 : 18,257.52 = 7,180.64 : x
  2. Step 2: Convert to fraction form
    13,230.54/18,257.52 = 7,180.64/x
  3. Step 3: Cross multiply
    13,230.54x = 18,257.52 × 7,180.64
  4. Step 4: Simplify right side
    13,230.54x = 131,100,732.69
  5. Step 5: Solve for x
    x = 131,100,732.69/13,230.54
  6. Step 6: Final answer
    x = 9,908.95

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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.