Home / 14,112.27-21,172.07-4,116.78

Finding the Fourth Proportional to 14,112.27, 21,172.07 and 4,116.78

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Solution

The fourth proportional to 14,112.27, 21,172.07 and 4,116.78 is: 6,176.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.27 : 21,172.07 = 4,116.78 : x
  2. Step 2: Convert to fraction form
    14,112.27/21,172.07 = 4,116.78/x
  3. Step 3: Cross multiply
    14,112.27x = 21,172.07 × 4,116.78
  4. Step 4: Simplify right side
    14,112.27x = 87,160,764.63
  5. Step 5: Solve for x
    x = 87,160,764.63/14,112.27
  6. Step 6: Final answer
    x = 6,176.24

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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.