Home / 11,520.20-17,272.86-6,324.68

Finding the Fourth Proportional to 11,520.20, 17,272.86 and 6,324.68

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Solution

The fourth proportional to 11,520.20, 17,272.86 and 6,324.68 is: 9,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.20 : 17,272.86 = 6,324.68 : x
  2. Step 2: Convert to fraction form
    11,520.20/17,272.86 = 6,324.68/x
  3. Step 3: Cross multiply
    11,520.20x = 17,272.86 × 6,324.68
  4. Step 4: Simplify right side
    11,520.20x = 109,245,312.18
  5. Step 5: Solve for x
    x = 109,245,312.18/11,520.20
  6. Step 6: Final answer
    x = 9,482.94

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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.