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Finding the Fourth Proportional to 8,263.66, 12,395.72 and 2,420.27

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Solution

The fourth proportional to 8,263.66, 12,395.72 and 2,420.27 is: 3,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.66 : 12,395.72 = 2,420.27 : x
  2. Step 2: Convert to fraction form
    8,263.66/12,395.72 = 2,420.27/x
  3. Step 3: Cross multiply
    8,263.66x = 12,395.72 × 2,420.27
  4. Step 4: Simplify right side
    8,263.66x = 30,000,915.16
  5. Step 5: Solve for x
    x = 30,000,915.16/8,263.66
  6. Step 6: Final answer
    x = 3,630.46

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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.