Home / 14,409.09-19,884.69-8,120.25

Finding the Fourth Proportional to 14,409.09, 19,884.69 and 8,120.25

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Solution

The fourth proportional to 14,409.09, 19,884.69 and 8,120.25 is: 11,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.09 : 19,884.69 = 8,120.25 : x
  2. Step 2: Convert to fraction form
    14,409.09/19,884.69 = 8,120.25/x
  3. Step 3: Cross multiply
    14,409.09x = 19,884.69 × 8,120.25
  4. Step 4: Simplify right side
    14,409.09x = 161,468,653.97
  5. Step 5: Solve for x
    x = 161,468,653.97/14,409.09
  6. Step 6: Final answer
    x = 11,206.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.