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Finding the Fourth Proportional to 14,404.23, 21,606.21 and 7,828.92

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Solution

The fourth proportional to 14,404.23, 21,606.21 and 7,828.92 is: 11,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.23 : 21,606.21 = 7,828.92 : x
  2. Step 2: Convert to fraction form
    14,404.23/21,606.21 = 7,828.92/x
  3. Step 3: Cross multiply
    14,404.23x = 21,606.21 × 7,828.92
  4. Step 4: Simplify right side
    14,404.23x = 169,153,289.59
  5. Step 5: Solve for x
    x = 169,153,289.59/14,404.23
  6. Step 6: Final answer
    x = 11,743.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.