Home / 7,124.45-10,686.86-3,375.35

Finding the Fourth Proportional to 7,124.45, 10,686.86 and 3,375.35

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Solution

The fourth proportional to 7,124.45, 10,686.86 and 3,375.35 is: 5,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.45 : 10,686.86 = 3,375.35 : x
  2. Step 2: Convert to fraction form
    7,124.45/10,686.86 = 3,375.35/x
  3. Step 3: Cross multiply
    7,124.45x = 10,686.86 × 3,375.35
  4. Step 4: Simplify right side
    7,124.45x = 36,071,921.73
  5. Step 5: Solve for x
    x = 36,071,921.73/7,124.45
  6. Step 6: Final answer
    x = 5,063.12

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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.