Home / 19,687.16-29,530.70-7,997.64

Finding the Fourth Proportional to 19,687.16, 29,530.70 and 7,997.64

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Solution

The fourth proportional to 19,687.16, 29,530.70 and 7,997.64 is: 11,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.16 : 29,530.70 = 7,997.64 : x
  2. Step 2: Convert to fraction form
    19,687.16/29,530.70 = 7,997.64/x
  3. Step 3: Cross multiply
    19,687.16x = 29,530.70 × 7,997.64
  4. Step 4: Simplify right side
    19,687.16x = 236,175,907.55
  5. Step 5: Solve for x
    x = 236,175,907.55/19,687.16
  6. Step 6: Final answer
    x = 11,996.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.