Home / 11,955.40-16,496.83-6,649.19

Finding the Fourth Proportional to 11,955.40, 16,496.83 and 6,649.19

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Solution

The fourth proportional to 11,955.40, 16,496.83 and 6,649.19 is: 9,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.40 : 16,496.83 = 6,649.19 : x
  2. Step 2: Convert to fraction form
    11,955.40/16,496.83 = 6,649.19/x
  3. Step 3: Cross multiply
    11,955.40x = 16,496.83 × 6,649.19
  4. Step 4: Simplify right side
    11,955.40x = 109,690,557.07
  5. Step 5: Solve for x
    x = 109,690,557.07/11,955.40
  6. Step 6: Final answer
    x = 9,174.98

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