Home / 11,105.36-15,330.36-7,330.76

Finding the Fourth Proportional to 11,105.36, 15,330.36 and 7,330.76

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Solution

The fourth proportional to 11,105.36, 15,330.36 and 7,330.76 is: 10,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.36 : 15,330.36 = 7,330.76 : x
  2. Step 2: Convert to fraction form
    11,105.36/15,330.36 = 7,330.76/x
  3. Step 3: Cross multiply
    11,105.36x = 15,330.36 × 7,330.76
  4. Step 4: Simplify right side
    11,105.36x = 112,383,189.87
  5. Step 5: Solve for x
    x = 112,383,189.87/11,105.36
  6. Step 6: Final answer
    x = 10,119.73

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,106.36, 15,331.74 and 7,331.76
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.