Home / 13,177.64-19,770.10-7,620.84

Finding the Fourth Proportional to 13,177.64, 19,770.10 and 7,620.84

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Solution

The fourth proportional to 13,177.64, 19,770.10 and 7,620.84 is: 11,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.64 : 19,770.10 = 7,620.84 : x
  2. Step 2: Convert to fraction form
    13,177.64/19,770.10 = 7,620.84/x
  3. Step 3: Cross multiply
    13,177.64x = 19,770.10 × 7,620.84
  4. Step 4: Simplify right side
    13,177.64x = 150,664,768.88
  5. Step 5: Solve for x
    x = 150,664,768.88/13,177.64
  6. Step 6: Final answer
    x = 11,433.37

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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.