Home / 8,148.30-12,195.45-5,920.80

Finding the Fourth Proportional to 8,148.30, 12,195.45 and 5,920.80

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Solution

The fourth proportional to 8,148.30, 12,195.45 and 5,920.80 is: 8,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.30 : 12,195.45 = 5,920.80 : x
  2. Step 2: Convert to fraction form
    8,148.30/12,195.45 = 5,920.80/x
  3. Step 3: Cross multiply
    8,148.30x = 12,195.45 × 5,920.80
  4. Step 4: Simplify right side
    8,148.30x = 72,206,820.36
  5. Step 5: Solve for x
    x = 72,206,820.36/8,148.30
  6. Step 6: Final answer
    x = 8,861.58

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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.