Home / 11,237.55-16,858.15-4,218.11

Finding the Fourth Proportional to 11,237.55, 16,858.15 and 4,218.11

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Solution

The fourth proportional to 11,237.55, 16,858.15 and 4,218.11 is: 6,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.55 : 16,858.15 = 4,218.11 : x
  2. Step 2: Convert to fraction form
    11,237.55/16,858.15 = 4,218.11/x
  3. Step 3: Cross multiply
    11,237.55x = 16,858.15 × 4,218.11
  4. Step 4: Simplify right side
    11,237.55x = 71,109,562.70
  5. Step 5: Solve for x
    x = 71,109,562.70/11,237.55
  6. Step 6: Final answer
    x = 6,327.85

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.