Home / 13,118.40-19,644.48-7,850.16

Finding the Fourth Proportional to 13,118.40, 19,644.48 and 7,850.16

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Solution

The fourth proportional to 13,118.40, 19,644.48 and 7,850.16 is: 11,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.40 : 19,644.48 = 7,850.16 : x
  2. Step 2: Convert to fraction form
    13,118.40/19,644.48 = 7,850.16/x
  3. Step 3: Cross multiply
    13,118.40x = 19,644.48 × 7,850.16
  4. Step 4: Simplify right side
    13,118.40x = 154,212,311.12
  5. Step 5: Solve for x
    x = 154,212,311.12/13,118.40
  6. Step 6: Final answer
    x = 11,755.42

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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.