Home / 8,435.34-11,638.89-5,450.76

Finding the Fourth Proportional to 8,435.34, 11,638.89 and 5,450.76

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Solution

The fourth proportional to 8,435.34, 11,638.89 and 5,450.76 is: 7,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.34 : 11,638.89 = 5,450.76 : x
  2. Step 2: Convert to fraction form
    8,435.34/11,638.89 = 5,450.76/x
  3. Step 3: Cross multiply
    8,435.34x = 11,638.89 × 5,450.76
  4. Step 4: Simplify right side
    8,435.34x = 63,440,796.06
  5. Step 5: Solve for x
    x = 63,440,796.06/8,435.34
  6. Step 6: Final answer
    x = 7,520.83

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.