Home / 7,825.30-11,737.93-3,145.30

Finding the Fourth Proportional to 7,825.30, 11,737.93 and 3,145.30

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Solution

The fourth proportional to 7,825.30, 11,737.93 and 3,145.30 is: 4,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.30 : 11,737.93 = 3,145.30 : x
  2. Step 2: Convert to fraction form
    7,825.30/11,737.93 = 3,145.30/x
  3. Step 3: Cross multiply
    7,825.30x = 11,737.93 × 3,145.30
  4. Step 4: Simplify right side
    7,825.30x = 36,919,311.23
  5. Step 5: Solve for x
    x = 36,919,311.23/7,825.30
  6. Step 6: Final answer
    x = 4,717.94

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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.