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Finding the Fourth Proportional to 8,908.56, 13,354.04 and 4,220.34

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Solution

The fourth proportional to 8,908.56, 13,354.04 and 4,220.34 is: 6,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.56 : 13,354.04 = 4,220.34 : x
  2. Step 2: Convert to fraction form
    8,908.56/13,354.04 = 4,220.34/x
  3. Step 3: Cross multiply
    8,908.56x = 13,354.04 × 4,220.34
  4. Step 4: Simplify right side
    8,908.56x = 56,358,568.07
  5. Step 5: Solve for x
    x = 56,358,568.07/8,908.56
  6. Step 6: Final answer
    x = 6,326.34

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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.