Home / 16,828.80-25,242.96-5,142.09

Finding the Fourth Proportional to 16,828.80, 25,242.96 and 5,142.09

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Solution

The fourth proportional to 16,828.80, 25,242.96 and 5,142.09 is: 7,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,828.80 : 25,242.96 = 5,142.09 : x
  2. Step 2: Convert to fraction form
    16,828.80/25,242.96 = 5,142.09/x
  3. Step 3: Cross multiply
    16,828.80x = 25,242.96 × 5,142.09
  4. Step 4: Simplify right side
    16,828.80x = 129,801,572.19
  5. Step 5: Solve for x
    x = 129,801,572.19/16,828.80
  6. Step 6: Final answer
    x = 7,713.06

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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.