Home / 7,667.78-11,506.11-3,225.09

Finding the Fourth Proportional to 7,667.78, 11,506.11 and 3,225.09

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Solution

The fourth proportional to 7,667.78, 11,506.11 and 3,225.09 is: 4,839.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.78 : 11,506.11 = 3,225.09 : x
  2. Step 2: Convert to fraction form
    7,667.78/11,506.11 = 3,225.09/x
  3. Step 3: Cross multiply
    7,667.78x = 11,506.11 × 3,225.09
  4. Step 4: Simplify right side
    7,667.78x = 37,108,240.30
  5. Step 5: Solve for x
    x = 37,108,240.30/7,667.78
  6. Step 6: Final answer
    x = 4,839.50

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Double scale
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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.