Home / 12,744.80-19,117.92-4,421.24

Finding the Fourth Proportional to 12,744.80, 19,117.92 and 4,421.24

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Solution

The fourth proportional to 12,744.80, 19,117.92 and 4,421.24 is: 6,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.80 : 19,117.92 = 4,421.24 : x
  2. Step 2: Convert to fraction form
    12,744.80/19,117.92 = 4,421.24/x
  3. Step 3: Cross multiply
    12,744.80x = 19,117.92 × 4,421.24
  4. Step 4: Simplify right side
    12,744.80x = 84,524,912.62
  5. Step 5: Solve for x
    x = 84,524,912.62/12,744.80
  6. Step 6: Final answer
    x = 6,632.11

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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.