Home / 8,216.80-11,338.92-4,680.88

Finding the Fourth Proportional to 8,216.80, 11,338.92 and 4,680.88

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Solution

The fourth proportional to 8,216.80, 11,338.92 and 4,680.88 is: 6,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.80 : 11,338.92 = 4,680.88 : x
  2. Step 2: Convert to fraction form
    8,216.80/11,338.92 = 4,680.88/x
  3. Step 3: Cross multiply
    8,216.80x = 11,338.92 × 4,680.88
  4. Step 4: Simplify right side
    8,216.80x = 53,076,123.85
  5. Step 5: Solve for x
    x = 53,076,123.85/8,216.80
  6. Step 6: Final answer
    x = 6,459.46

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Half scale
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Double 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.