Home / 14,429.91-19,907.42-8,141.07

Finding the Fourth Proportional to 14,429.91, 19,907.42 and 8,141.07

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Solution

The fourth proportional to 14,429.91, 19,907.42 and 8,141.07 is: 11,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.91 : 19,907.42 = 8,141.07 : x
  2. Step 2: Convert to fraction form
    14,429.91/19,907.42 = 8,141.07/x
  3. Step 3: Cross multiply
    14,429.91x = 19,907.42 × 8,141.07
  4. Step 4: Simplify right side
    14,429.91x = 162,067,699.74
  5. Step 5: Solve for x
    x = 162,067,699.74/14,429.91
  6. Step 6: Final answer
    x = 11,231.37

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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.