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Finding the Fourth Proportional to 8,944.86, 13,419.72 and 6,364.20

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Solution

The fourth proportional to 8,944.86, 13,419.72 and 6,364.20 is: 9,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.86 : 13,419.72 = 6,364.20 : x
  2. Step 2: Convert to fraction form
    8,944.86/13,419.72 = 6,364.20/x
  3. Step 3: Cross multiply
    8,944.86x = 13,419.72 × 6,364.20
  4. Step 4: Simplify right side
    8,944.86x = 85,405,782.02
  5. Step 5: Solve for x
    x = 85,405,782.02/8,944.86
  6. Step 6: Final answer
    x = 9,548.03

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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.