Home / 12,956.24-17,879.32-7,213.65

Finding the Fourth Proportional to 12,956.24, 17,879.32 and 7,213.65

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Solution

The fourth proportional to 12,956.24, 17,879.32 and 7,213.65 is: 9,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.24 : 17,879.32 = 7,213.65 : x
  2. Step 2: Convert to fraction form
    12,956.24/17,879.32 = 7,213.65/x
  3. Step 3: Cross multiply
    12,956.24x = 17,879.32 × 7,213.65
  4. Step 4: Simplify right side
    12,956.24x = 128,975,255.94
  5. Step 5: Solve for x
    x = 128,975,255.94/12,956.24
  6. Step 6: Final answer
    x = 9,954.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.