Home / 14,355.09-19,810.69-7,982.34

Finding the Fourth Proportional to 14,355.09, 19,810.69 and 7,982.34

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Solution

The fourth proportional to 14,355.09, 19,810.69 and 7,982.34 is: 11,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.09 : 19,810.69 = 7,982.34 : x
  2. Step 2: Convert to fraction form
    14,355.09/19,810.69 = 7,982.34/x
  3. Step 3: Cross multiply
    14,355.09x = 19,810.69 × 7,982.34
  4. Step 4: Simplify right side
    14,355.09x = 158,135,568.97
  5. Step 5: Solve for x
    x = 158,135,568.97/14,355.09
  6. Step 6: Final answer
    x = 11,015.99

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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.