Home / 14,083.06-21,121.53-4,219.69

Finding the Fourth Proportional to 14,083.06, 21,121.53 and 4,219.69

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Solution

The fourth proportional to 14,083.06, 21,121.53 and 4,219.69 is: 6,328.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.06 : 21,121.53 = 4,219.69 : x
  2. Step 2: Convert to fraction form
    14,083.06/21,121.53 = 4,219.69/x
  3. Step 3: Cross multiply
    14,083.06x = 21,121.53 × 4,219.69
  4. Step 4: Simplify right side
    14,083.06x = 89,126,308.93
  5. Step 5: Solve for x
    x = 89,126,308.93/14,083.06
  6. Step 6: Final answer
    x = 6,328.62

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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.