Home / 7,415.80-11,125.86-3,514.84

Finding the Fourth Proportional to 7,415.80, 11,125.86 and 3,514.84

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Solution

The fourth proportional to 7,415.80, 11,125.86 and 3,514.84 is: 5,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.80 : 11,125.86 = 3,514.84 : x
  2. Step 2: Convert to fraction form
    7,415.80/11,125.86 = 3,514.84/x
  3. Step 3: Cross multiply
    7,415.80x = 11,125.86 × 3,514.84
  4. Step 4: Simplify right side
    7,415.80x = 39,105,617.76
  5. Step 5: Solve for x
    x = 39,105,617.76/7,415.80
  6. Step 6: Final answer
    x = 5,273.28

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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.