Home / 14,421.91-19,898.48-8,450.37

Finding the Fourth Proportional to 14,421.91, 19,898.48 and 8,450.37

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Solution

The fourth proportional to 14,421.91, 19,898.48 and 8,450.37 is: 11,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.91 : 19,898.48 = 8,450.37 : x
  2. Step 2: Convert to fraction form
    14,421.91/19,898.48 = 8,450.37/x
  3. Step 3: Cross multiply
    14,421.91x = 19,898.48 × 8,450.37
  4. Step 4: Simplify right side
    14,421.91x = 168,149,476.19
  5. Step 5: Solve for x
    x = 168,149,476.19/14,421.91
  6. Step 6: Final answer
    x = 11,659.31

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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.