Home / 14,112.76-21,171.15-4,252.80

Finding the Fourth Proportional to 14,112.76, 21,171.15 and 4,252.80

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Solution

The fourth proportional to 14,112.76, 21,171.15 and 4,252.80 is: 6,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.76 : 21,171.15 = 4,252.80 : x
  2. Step 2: Convert to fraction form
    14,112.76/21,171.15 = 4,252.80/x
  3. Step 3: Cross multiply
    14,112.76x = 21,171.15 × 4,252.80
  4. Step 4: Simplify right side
    14,112.76x = 90,036,734.15
  5. Step 5: Solve for x
    x = 90,036,734.15/14,112.76
  6. Step 6: Final answer
    x = 6,379.81

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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.