Home / 12,722.43-19,085.38-4,400.21

Finding the Fourth Proportional to 12,722.43, 19,085.38 and 4,400.21

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Solution

The fourth proportional to 12,722.43, 19,085.38 and 4,400.21 is: 6,600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.43 : 19,085.38 = 4,400.21 : x
  2. Step 2: Convert to fraction form
    12,722.43/19,085.38 = 4,400.21/x
  3. Step 3: Cross multiply
    12,722.43x = 19,085.38 × 4,400.21
  4. Step 4: Simplify right side
    12,722.43x = 83,979,716.64
  5. Step 5: Solve for x
    x = 83,979,716.64/12,722.43
  6. Step 6: Final answer
    x = 6,600.92

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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.