Home / 9,936.90-13,712.29-5,687.96

Finding the Fourth Proportional to 9,936.90, 13,712.29 and 5,687.96

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Solution

The fourth proportional to 9,936.90, 13,712.29 and 5,687.96 is: 7,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.90 : 13,712.29 = 5,687.96 : x
  2. Step 2: Convert to fraction form
    9,936.90/13,712.29 = 5,687.96/x
  3. Step 3: Cross multiply
    9,936.90x = 13,712.29 × 5,687.96
  4. Step 4: Simplify right side
    9,936.90x = 77,994,874.25
  5. Step 5: Solve for x
    x = 77,994,874.25/9,936.90
  6. Step 6: Final answer
    x = 7,849.01

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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.