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Finding the Fourth Proportional to 8,813.88, 13,213.89 and 4,368.49

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Solution

The fourth proportional to 8,813.88, 13,213.89 and 4,368.49 is: 6,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.88 : 13,213.89 = 4,368.49 : x
  2. Step 2: Convert to fraction form
    8,813.88/13,213.89 = 4,368.49/x
  3. Step 3: Cross multiply
    8,813.88x = 13,213.89 × 4,368.49
  4. Step 4: Simplify right side
    8,813.88x = 57,724,713.43
  5. Step 5: Solve for x
    x = 57,724,713.43/8,813.88
  6. Step 6: Final answer
    x = 6,549.30

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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.