Home / 12,400.87-18,601.06-3,635.59

Finding the Fourth Proportional to 12,400.87, 18,601.06 and 3,635.59

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Solution

The fourth proportional to 12,400.87, 18,601.06 and 3,635.59 is: 5,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.87 : 18,601.06 = 3,635.59 : x
  2. Step 2: Convert to fraction form
    12,400.87/18,601.06 = 3,635.59/x
  3. Step 3: Cross multiply
    12,400.87x = 18,601.06 × 3,635.59
  4. Step 4: Simplify right side
    12,400.87x = 67,625,827.73
  5. Step 5: Solve for x
    x = 67,625,827.73/12,400.87
  6. Step 6: Final answer
    x = 5,453.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.