Home / 7,515.50-11,274.48-2,518.88

Finding the Fourth Proportional to 7,515.50, 11,274.48 and 2,518.88

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Solution

The fourth proportional to 7,515.50, 11,274.48 and 2,518.88 is: 3,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.50 : 11,274.48 = 2,518.88 : x
  2. Step 2: Convert to fraction form
    7,515.50/11,274.48 = 2,518.88/x
  3. Step 3: Cross multiply
    7,515.50x = 11,274.48 × 2,518.88
  4. Step 4: Simplify right side
    7,515.50x = 28,399,005.81
  5. Step 5: Solve for x
    x = 28,399,005.81/7,515.50
  6. Step 6: Final answer
    x = 3,778.73

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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.