Home / 19,321.20-28,981.76-6,174.59

Finding the Fourth Proportional to 19,321.20, 28,981.76 and 6,174.59

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Solution

The fourth proportional to 19,321.20, 28,981.76 and 6,174.59 is: 9,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.20 : 28,981.76 = 6,174.59 : x
  2. Step 2: Convert to fraction form
    19,321.20/28,981.76 = 6,174.59/x
  3. Step 3: Cross multiply
    19,321.20x = 28,981.76 × 6,174.59
  4. Step 4: Simplify right side
    19,321.20x = 178,950,309.70
  5. Step 5: Solve for x
    x = 178,950,309.70/19,321.20
  6. Step 6: Final answer
    x = 9,261.86

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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.