Home / 14,404.36-19,879.32-8,438.08

Finding the Fourth Proportional to 14,404.36, 19,879.32 and 8,438.08

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Solution

The fourth proportional to 14,404.36, 19,879.32 and 8,438.08 is: 11,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.36 : 19,879.32 = 8,438.08 : x
  2. Step 2: Convert to fraction form
    14,404.36/19,879.32 = 8,438.08/x
  3. Step 3: Cross multiply
    14,404.36x = 19,879.32 × 8,438.08
  4. Step 4: Simplify right side
    14,404.36x = 167,743,292.51
  5. Step 5: Solve for x
    x = 167,743,292.51/14,404.36
  6. Step 6: Final answer
    x = 11,645.31

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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.