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Finding the Fourth Proportional to 14,129.26, 21,193.90 and 4,895.26

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Solution

The fourth proportional to 14,129.26, 21,193.90 and 4,895.26 is: 7,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.26 : 21,193.90 = 4,895.26 : x
  2. Step 2: Convert to fraction form
    14,129.26/21,193.90 = 4,895.26/x
  3. Step 3: Cross multiply
    14,129.26x = 21,193.90 × 4,895.26
  4. Step 4: Simplify right side
    14,129.26x = 103,749,650.91
  5. Step 5: Solve for x
    x = 103,749,650.91/14,129.26
  6. Step 6: Final answer
    x = 7,342.89

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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.