Home / 7,675.50-11,515.95-3,782.64

Finding the Fourth Proportional to 7,675.50, 11,515.95 and 3,782.64

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Solution

The fourth proportional to 7,675.50, 11,515.95 and 3,782.64 is: 5,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.50 : 11,515.95 = 3,782.64 : x
  2. Step 2: Convert to fraction form
    7,675.50/11,515.95 = 3,782.64/x
  3. Step 3: Cross multiply
    7,675.50x = 11,515.95 × 3,782.64
  4. Step 4: Simplify right side
    7,675.50x = 43,560,693.11
  5. Step 5: Solve for x
    x = 43,560,693.11/7,675.50
  6. Step 6: Final answer
    x = 5,675.29

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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.