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Finding the Fourth Proportional to 8,893.40, 13,346.68 and 4,213.42

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Solution

The fourth proportional to 8,893.40, 13,346.68 and 4,213.42 is: 6,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.40 : 13,346.68 = 4,213.42 : x
  2. Step 2: Convert to fraction form
    8,893.40/13,346.68 = 4,213.42/x
  3. Step 3: Cross multiply
    8,893.40x = 13,346.68 × 4,213.42
  4. Step 4: Simplify right side
    8,893.40x = 56,235,132.45
  5. Step 5: Solve for x
    x = 56,235,132.45/8,893.40
  6. Step 6: Final answer
    x = 6,323.24

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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.