Home / 19,163.30-28,737.78-6,680.12

Finding the Fourth Proportional to 19,163.30, 28,737.78 and 6,680.12

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Solution

The fourth proportional to 19,163.30, 28,737.78 and 6,680.12 is: 10,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.30 : 28,737.78 = 6,680.12 : x
  2. Step 2: Convert to fraction form
    19,163.30/28,737.78 = 6,680.12/x
  3. Step 3: Cross multiply
    19,163.30x = 28,737.78 × 6,680.12
  4. Step 4: Simplify right side
    19,163.30x = 191,971,818.93
  5. Step 5: Solve for x
    x = 191,971,818.93/19,163.30
  6. Step 6: Final answer
    x = 10,017.68

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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.