Home / 14,112.81-21,169.38-4,252.19

Finding the Fourth Proportional to 14,112.81, 21,169.38 and 4,252.19

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Solution

The fourth proportional to 14,112.81, 21,169.38 and 4,252.19 is: 6,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.81 : 21,169.38 = 4,252.19 : x
  2. Step 2: Convert to fraction form
    14,112.81/21,169.38 = 4,252.19/x
  3. Step 3: Cross multiply
    14,112.81x = 21,169.38 × 4,252.19
  4. Step 4: Simplify right side
    14,112.81x = 90,016,120.10
  5. Step 5: Solve for x
    x = 90,016,120.10/14,112.81
  6. Step 6: Final answer
    x = 6,378.33

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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.