Home / 12,958.89-19,434.23-4,191.75

Finding the Fourth Proportional to 12,958.89, 19,434.23 and 4,191.75

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Solution

The fourth proportional to 12,958.89, 19,434.23 and 4,191.75 is: 6,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.89 : 19,434.23 = 4,191.75 : x
  2. Step 2: Convert to fraction form
    12,958.89/19,434.23 = 4,191.75/x
  3. Step 3: Cross multiply
    12,958.89x = 19,434.23 × 4,191.75
  4. Step 4: Simplify right side
    12,958.89x = 81,463,428.36
  5. Step 5: Solve for x
    x = 81,463,428.36/12,958.89
  6. Step 6: Final answer
    x = 6,286.30

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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.