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Finding the Fourth Proportional to 8,251, 11,386.38 and 4,525

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Solution

The fourth proportional to 8,251, 11,386.38 and 4,525 is: 6,244.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251 : 11,386.38 = 4,525 : x
  2. Step 2: Convert to fraction form
    8,251/11,386.38 = 4,525/x
  3. Step 3: Cross multiply
    8,251x = 11,386.38 × 4,525
  4. Step 4: Simplify right side
    8,251x = 51,523,369.50
  5. Step 5: Solve for x
    x = 51,523,369.50/8,251
  6. Step 6: Final answer
    x = 6,244.50

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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.