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Finding the Fourth Proportional to 9,936.88, 14,907.12 and 4,090.30

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Solution

The fourth proportional to 9,936.88, 14,907.12 and 4,090.30 is: 6,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.88 : 14,907.12 = 4,090.30 : x
  2. Step 2: Convert to fraction form
    9,936.88/14,907.12 = 4,090.30/x
  3. Step 3: Cross multiply
    9,936.88x = 14,907.12 × 4,090.30
  4. Step 4: Simplify right side
    9,936.88x = 60,974,592.94
  5. Step 5: Solve for x
    x = 60,974,592.94/9,936.88
  6. Step 6: Final answer
    x = 6,136.19

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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.