Home / 19,479.56-26,879.65-11,927.79

Finding the Fourth Proportional to 19,479.56, 26,879.65 and 11,927.79

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Solution

The fourth proportional to 19,479.56, 26,879.65 and 11,927.79 is: 16,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.56 : 26,879.65 = 11,927.79 : x
  2. Step 2: Convert to fraction form
    19,479.56/26,879.65 = 11,927.79/x
  3. Step 3: Cross multiply
    19,479.56x = 26,879.65 × 11,927.79
  4. Step 4: Simplify right side
    19,479.56x = 320,614,790.65
  5. Step 5: Solve for x
    x = 320,614,790.65/19,479.56
  6. Step 6: Final answer
    x = 16,459.04

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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.