Home / 8,102.55-12,153.82-6,256.36

Finding the Fourth Proportional to 8,102.55, 12,153.82 and 6,256.36

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Solution

The fourth proportional to 8,102.55, 12,153.82 and 6,256.36 is: 9,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.55 : 12,153.82 = 6,256.36 : x
  2. Step 2: Convert to fraction form
    8,102.55/12,153.82 = 6,256.36/x
  3. Step 3: Cross multiply
    8,102.55x = 12,153.82 × 6,256.36
  4. Step 4: Simplify right side
    8,102.55x = 76,038,673.30
  5. Step 5: Solve for x
    x = 76,038,673.30/8,102.55
  6. Step 6: Final answer
    x = 9,384.54

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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.