Home / 8,211.45-11,331.90-4,674.66

Finding the Fourth Proportional to 8,211.45, 11,331.90 and 4,674.66

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Solution

The fourth proportional to 8,211.45, 11,331.90 and 4,674.66 is: 6,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.45 : 11,331.90 = 4,674.66 : x
  2. Step 2: Convert to fraction form
    8,211.45/11,331.90 = 4,674.66/x
  3. Step 3: Cross multiply
    8,211.45x = 11,331.90 × 4,674.66
  4. Step 4: Simplify right side
    8,211.45x = 52,972,779.65
  5. Step 5: Solve for x
    x = 52,972,779.65/8,211.45
  6. Step 6: Final answer
    x = 6,451.09

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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.