Home / 11,186.10-16,779.15-7,499.70

Finding the Fourth Proportional to 11,186.10, 16,779.15 and 7,499.70

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Solution

The fourth proportional to 11,186.10, 16,779.15 and 7,499.70 is: 11,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.10 : 16,779.15 = 7,499.70 : x
  2. Step 2: Convert to fraction form
    11,186.10/16,779.15 = 7,499.70/x
  3. Step 3: Cross multiply
    11,186.10x = 16,779.15 × 7,499.70
  4. Step 4: Simplify right side
    11,186.10x = 125,838,591.26
  5. Step 5: Solve for x
    x = 125,838,591.26/11,186.10
  6. Step 6: Final answer
    x = 11,249.55

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Half scale
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Double scale
Find fourth proportional to 11,187.10, 16,780.65 and 7,500.70
Similar ratio
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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.