Home / 12,840.24-19,260.60-5,919.60

Finding the Fourth Proportional to 12,840.24, 19,260.60 and 5,919.60

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Solution

The fourth proportional to 12,840.24, 19,260.60 and 5,919.60 is: 8,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.24 : 19,260.60 = 5,919.60 : x
  2. Step 2: Convert to fraction form
    12,840.24/19,260.60 = 5,919.60/x
  3. Step 3: Cross multiply
    12,840.24x = 19,260.60 × 5,919.60
  4. Step 4: Simplify right side
    12,840.24x = 114,015,047.76
  5. Step 5: Solve for x
    x = 114,015,047.76/12,840.24
  6. Step 6: Final answer
    x = 8,879.51

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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.