Home / 19,012.80-28,527.30-11,998.20

Finding the Fourth Proportional to 19,012.80, 28,527.30 and 11,998.20

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Solution

The fourth proportional to 19,012.80, 28,527.30 and 11,998.20 is: 18,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.80 : 28,527.30 = 11,998.20 : x
  2. Step 2: Convert to fraction form
    19,012.80/28,527.30 = 11,998.20/x
  3. Step 3: Cross multiply
    19,012.80x = 28,527.30 × 11,998.20
  4. Step 4: Simplify right side
    19,012.80x = 342,276,250.86
  5. Step 5: Solve for x
    x = 342,276,250.86/19,012.80
  6. Step 6: Final answer
    x = 18,002.41

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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.