Home / 9,954.72-13,728.48-8,175.84

Finding the Fourth Proportional to 9,954.72, 13,728.48 and 8,175.84

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Solution

The fourth proportional to 9,954.72, 13,728.48 and 8,175.84 is: 11,275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,954.72 : 13,728.48 = 8,175.84 : x
  2. Step 2: Convert to fraction form
    9,954.72/13,728.48 = 8,175.84/x
  3. Step 3: Cross multiply
    9,954.72x = 13,728.48 × 8,175.84
  4. Step 4: Simplify right side
    9,954.72x = 112,241,855.92
  5. Step 5: Solve for x
    x = 112,241,855.92/9,954.72
  6. Step 6: Final answer
    x = 11,275.24

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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.