Home / 7,615.42-11,415.27-3,175.47

Finding the Fourth Proportional to 7,615.42, 11,415.27 and 3,175.47

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Solution

The fourth proportional to 7,615.42, 11,415.27 and 3,175.47 is: 4,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.42 : 11,415.27 = 3,175.47 : x
  2. Step 2: Convert to fraction form
    7,615.42/11,415.27 = 3,175.47/x
  3. Step 3: Cross multiply
    7,615.42x = 11,415.27 × 3,175.47
  4. Step 4: Simplify right side
    7,615.42x = 36,248,859.33
  5. Step 5: Solve for x
    x = 36,248,859.33/7,615.42
  6. Step 6: Final answer
    x = 4,759.93

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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.