Home / 7,715.57-11,577.57-3,272.55

Finding the Fourth Proportional to 7,715.57, 11,577.57 and 3,272.55

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Solution

The fourth proportional to 7,715.57, 11,577.57 and 3,272.55 is: 4,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.57 : 11,577.57 = 3,272.55 : x
  2. Step 2: Convert to fraction form
    7,715.57/11,577.57 = 3,272.55/x
  3. Step 3: Cross multiply
    7,715.57x = 11,577.57 × 3,272.55
  4. Step 4: Simplify right side
    7,715.57x = 37,888,118.82
  5. Step 5: Solve for x
    x = 37,888,118.82/7,715.57
  6. Step 6: Final answer
    x = 4,910.60

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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.