Home / 13,072.80-19,564.40-7,882.40

Finding the Fourth Proportional to 13,072.80, 19,564.40 and 7,882.40

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Solution

The fourth proportional to 13,072.80, 19,564.40 and 7,882.40 is: 11,796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.80 : 19,564.40 = 7,882.40 : x
  2. Step 2: Convert to fraction form
    13,072.80/19,564.40 = 7,882.40/x
  3. Step 3: Cross multiply
    13,072.80x = 19,564.40 × 7,882.40
  4. Step 4: Simplify right side
    13,072.80x = 154,214,426.56
  5. Step 5: Solve for x
    x = 154,214,426.56/13,072.80
  6. Step 6: Final answer
    x = 11,796.59

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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.