Home / 12,770.85-19,171.94-10,015.05

Finding the Fourth Proportional to 12,770.85, 19,171.94 and 10,015.05

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Solution

The fourth proportional to 12,770.85, 19,171.94 and 10,015.05 is: 15,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,770.85 : 19,171.94 = 10,015.05 : x
  2. Step 2: Convert to fraction form
    12,770.85/19,171.94 = 10,015.05/x
  3. Step 3: Cross multiply
    12,770.85x = 19,171.94 × 10,015.05
  4. Step 4: Simplify right side
    12,770.85x = 192,007,937.70
  5. Step 5: Solve for x
    x = 192,007,937.70/12,770.85
  6. Step 6: Final answer
    x = 15,034.86

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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.