Home / 8,211.19-11,331.56-4,674.42

Finding the Fourth Proportional to 8,211.19, 11,331.56 and 4,674.42

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Solution

The fourth proportional to 8,211.19, 11,331.56 and 4,674.42 is: 6,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.19 : 11,331.56 = 4,674.42 : x
  2. Step 2: Convert to fraction form
    8,211.19/11,331.56 = 4,674.42/x
  3. Step 3: Cross multiply
    8,211.19x = 11,331.56 × 4,674.42
  4. Step 4: Simplify right side
    8,211.19x = 52,968,470.70
  5. Step 5: Solve for x
    x = 52,968,470.70/8,211.19
  6. Step 6: Final answer
    x = 6,450.77

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Half scale
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Double scale
Find fourth proportional to 8,212.19, 11,332.94 and 4,675.42
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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.