Home / 14,038.54-21,046.62-8,108.68

Finding the Fourth Proportional to 14,038.54, 21,046.62 and 8,108.68

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Solution

The fourth proportional to 14,038.54, 21,046.62 and 8,108.68 is: 12,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.54 : 21,046.62 = 8,108.68 : x
  2. Step 2: Convert to fraction form
    14,038.54/21,046.62 = 8,108.68/x
  3. Step 3: Cross multiply
    14,038.54x = 21,046.62 × 8,108.68
  4. Step 4: Simplify right side
    14,038.54x = 170,660,306.66
  5. Step 5: Solve for x
    x = 170,660,306.66/14,038.54
  6. Step 6: Final answer
    x = 12,156.56

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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.