Home / 11,105.19-16,657.79-2,897.19

Finding the Fourth Proportional to 11,105.19, 16,657.79 and 2,897.19

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Solution

The fourth proportional to 11,105.19, 16,657.79 and 2,897.19 is: 4,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.19 : 16,657.79 = 2,897.19 : x
  2. Step 2: Convert to fraction form
    11,105.19/16,657.79 = 2,897.19/x
  3. Step 3: Cross multiply
    11,105.19x = 16,657.79 × 2,897.19
  4. Step 4: Simplify right side
    11,105.19x = 48,260,768.12
  5. Step 5: Solve for x
    x = 48,260,768.12/11,105.19
  6. Step 6: Final answer
    x = 4,345.79

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