Home / 12,722.32-19,081.24-3,485.84

Finding the Fourth Proportional to 12,722.32, 19,081.24 and 3,485.84

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Solution

The fourth proportional to 12,722.32, 19,081.24 and 3,485.84 is: 5,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.32 : 19,081.24 = 3,485.84 : x
  2. Step 2: Convert to fraction form
    12,722.32/19,081.24 = 3,485.84/x
  3. Step 3: Cross multiply
    12,722.32x = 19,081.24 × 3,485.84
  4. Step 4: Simplify right side
    12,722.32x = 66,514,149.64
  5. Step 5: Solve for x
    x = 66,514,149.64/12,722.32
  6. Step 6: Final answer
    x = 5,228.15

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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.