Home / 13,013.22-19,512.81-6,757.80

Finding the Fourth Proportional to 13,013.22, 19,512.81 and 6,757.80

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Solution

The fourth proportional to 13,013.22, 19,512.81 and 6,757.80 is: 10,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.22 : 19,512.81 = 6,757.80 : x
  2. Step 2: Convert to fraction form
    13,013.22/19,512.81 = 6,757.80/x
  3. Step 3: Cross multiply
    13,013.22x = 19,512.81 × 6,757.80
  4. Step 4: Simplify right side
    13,013.22x = 131,863,667.42
  5. Step 5: Solve for x
    x = 131,863,667.42/13,013.22
  6. Step 6: Final answer
    x = 10,133.05

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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.