Home / 9,540.40-14,310.60-8,519.80

Finding the Fourth Proportional to 9,540.40, 14,310.60 and 8,519.80

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Solution

The fourth proportional to 9,540.40, 14,310.60 and 8,519.80 is: 12,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.40 : 14,310.60 = 8,519.80 : x
  2. Step 2: Convert to fraction form
    9,540.40/14,310.60 = 8,519.80/x
  3. Step 3: Cross multiply
    9,540.40x = 14,310.60 × 8,519.80
  4. Step 4: Simplify right side
    9,540.40x = 121,923,449.88
  5. Step 5: Solve for x
    x = 121,923,449.88/9,540.40
  6. Step 6: Final answer
    x = 12,779.70

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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.