Home / 8,181.90-11,291.67-4,645.98

Finding the Fourth Proportional to 8,181.90, 11,291.67 and 4,645.98

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Solution

The fourth proportional to 8,181.90, 11,291.67 and 4,645.98 is: 6,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.90 : 11,291.67 = 4,645.98 : x
  2. Step 2: Convert to fraction form
    8,181.90/11,291.67 = 4,645.98/x
  3. Step 3: Cross multiply
    8,181.90x = 11,291.67 × 4,645.98
  4. Step 4: Simplify right side
    8,181.90x = 52,460,872.99
  5. Step 5: Solve for x
    x = 52,460,872.99/8,181.90
  6. Step 6: Final answer
    x = 6,411.82

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Half scale
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Double scale
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Similar ratio
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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.