Home / 12,490.27-18,735.44-3,724.99

Finding the Fourth Proportional to 12,490.27, 18,735.44 and 3,724.99

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Solution

The fourth proportional to 12,490.27, 18,735.44 and 3,724.99 is: 5,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.27 : 18,735.44 = 3,724.99 : x
  2. Step 2: Convert to fraction form
    12,490.27/18,735.44 = 3,724.99/x
  3. Step 3: Cross multiply
    12,490.27x = 18,735.44 × 3,724.99
  4. Step 4: Simplify right side
    12,490.27x = 69,789,261.18
  5. Step 5: Solve for x
    x = 69,789,261.18/12,490.27
  6. Step 6: Final answer
    x = 5,587.49

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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.