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Finding the Fourth Proportional to 8,520.34, 12,783.12 and 4,363.27

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Solution

The fourth proportional to 8,520.34, 12,783.12 and 4,363.27 is: 6,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.34 : 12,783.12 = 4,363.27 : x
  2. Step 2: Convert to fraction form
    8,520.34/12,783.12 = 4,363.27/x
  3. Step 3: Cross multiply
    8,520.34x = 12,783.12 × 4,363.27
  4. Step 4: Simplify right side
    8,520.34x = 55,776,140.09
  5. Step 5: Solve for x
    x = 55,776,140.09/8,520.34
  6. Step 6: Final answer
    x = 6,546.23

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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.