Home / 12,722.87-19,086.04-4,400.65

Finding the Fourth Proportional to 12,722.87, 19,086.04 and 4,400.65

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Solution

The fourth proportional to 12,722.87, 19,086.04 and 4,400.65 is: 6,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.87 : 19,086.04 = 4,400.65 : x
  2. Step 2: Convert to fraction form
    12,722.87/19,086.04 = 4,400.65/x
  3. Step 3: Cross multiply
    12,722.87x = 19,086.04 × 4,400.65
  4. Step 4: Simplify right side
    12,722.87x = 83,990,959.92
  5. Step 5: Solve for x
    x = 83,990,959.92/12,722.87
  6. Step 6: Final answer
    x = 6,601.57

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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.