Home / 12,808.20-17,676.68-7,507.47

Finding the Fourth Proportional to 12,808.20, 17,676.68 and 7,507.47

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Solution

The fourth proportional to 12,808.20, 17,676.68 and 7,507.47 is: 10,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.20 : 17,676.68 = 7,507.47 : x
  2. Step 2: Convert to fraction form
    12,808.20/17,676.68 = 7,507.47/x
  3. Step 3: Cross multiply
    12,808.20x = 17,676.68 × 7,507.47
  4. Step 4: Simplify right side
    12,808.20x = 132,707,107.26
  5. Step 5: Solve for x
    x = 132,707,107.26/12,808.20
  6. Step 6: Final answer
    x = 10,361.11

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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.