Home / 11,146.82-15,382.79-6,670.76

Finding the Fourth Proportional to 11,146.82, 15,382.79 and 6,670.76

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Solution

The fourth proportional to 11,146.82, 15,382.79 and 6,670.76 is: 9,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.82 : 15,382.79 = 6,670.76 : x
  2. Step 2: Convert to fraction form
    11,146.82/15,382.79 = 6,670.76/x
  3. Step 3: Cross multiply
    11,146.82x = 15,382.79 × 6,670.76
  4. Step 4: Simplify right side
    11,146.82x = 102,614,901.50
  5. Step 5: Solve for x
    x = 102,614,901.50/11,146.82
  6. Step 6: Final answer
    x = 9,205.76

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Half scale
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Double scale
Find fourth proportional to 11,147.82, 15,384.17 and 6,671.76
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.