Home / 13,757.62-18,983.26-7,788.03

Finding the Fourth Proportional to 13,757.62, 18,983.26 and 7,788.03

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Solution

The fourth proportional to 13,757.62, 18,983.26 and 7,788.03 is: 10,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.62 : 18,983.26 = 7,788.03 : x
  2. Step 2: Convert to fraction form
    13,757.62/18,983.26 = 7,788.03/x
  3. Step 3: Cross multiply
    13,757.62x = 18,983.26 × 7,788.03
  4. Step 4: Simplify right side
    13,757.62x = 147,842,198.38
  5. Step 5: Solve for x
    x = 147,842,198.38/13,757.62
  6. Step 6: Final answer
    x = 10,746.20

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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.