Home / 11,685.44-16,115.36-7,705.28

Finding the Fourth Proportional to 11,685.44, 16,115.36 and 7,705.28

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Solution

The fourth proportional to 11,685.44, 16,115.36 and 7,705.28 is: 10,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.44 : 16,115.36 = 7,705.28 : x
  2. Step 2: Convert to fraction form
    11,685.44/16,115.36 = 7,705.28/x
  3. Step 3: Cross multiply
    11,685.44x = 16,115.36 × 7,705.28
  4. Step 4: Simplify right side
    11,685.44x = 124,173,361.10
  5. Step 5: Solve for x
    x = 124,173,361.10/11,685.44
  6. Step 6: Final answer
    x = 10,626.33

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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.