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Finding the Fourth Proportional to 8,641.03, 12,954.03 and 4,478.85

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Solution

The fourth proportional to 8,641.03, 12,954.03 and 4,478.85 is: 6,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.03 : 12,954.03 = 4,478.85 : x
  2. Step 2: Convert to fraction form
    8,641.03/12,954.03 = 4,478.85/x
  3. Step 3: Cross multiply
    8,641.03x = 12,954.03 × 4,478.85
  4. Step 4: Simplify right side
    8,641.03x = 58,019,157.27
  5. Step 5: Solve for x
    x = 58,019,157.27/8,641.03
  6. Step 6: Final answer
    x = 6,714.38

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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.