Home / 14,018.88-21,021.12-4,156.92

Finding the Fourth Proportional to 14,018.88, 21,021.12 and 4,156.92

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Solution

The fourth proportional to 14,018.88, 21,021.12 and 4,156.92 is: 6,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.88 : 21,021.12 = 4,156.92 : x
  2. Step 2: Convert to fraction form
    14,018.88/21,021.12 = 4,156.92/x
  3. Step 3: Cross multiply
    14,018.88x = 21,021.12 × 4,156.92
  4. Step 4: Simplify right side
    14,018.88x = 87,383,114.15
  5. Step 5: Solve for x
    x = 87,383,114.15/14,018.88
  6. Step 6: Final answer
    x = 6,233.25

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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.