Home / 7,515.30-11,272.90-3,072.04

Finding the Fourth Proportional to 7,515.30, 11,272.90 and 3,072.04

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Solution

The fourth proportional to 7,515.30, 11,272.90 and 3,072.04 is: 4,608.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.30 : 11,272.90 = 3,072.04 : x
  2. Step 2: Convert to fraction form
    7,515.30/11,272.90 = 3,072.04/x
  3. Step 3: Cross multiply
    7,515.30x = 11,272.90 × 3,072.04
  4. Step 4: Simplify right side
    7,515.30x = 34,630,799.72
  5. Step 5: Solve for x
    x = 34,630,799.72/7,515.30
  6. Step 6: Final answer
    x = 4,608.04

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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.