Home / 8,447.05-11,658.77-4,912.30

Finding the Fourth Proportional to 8,447.05, 11,658.77 and 4,912.30

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Solution

The fourth proportional to 8,447.05, 11,658.77 and 4,912.30 is: 6,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.05 : 11,658.77 = 4,912.30 : x
  2. Step 2: Convert to fraction form
    8,447.05/11,658.77 = 4,912.30/x
  3. Step 3: Cross multiply
    8,447.05x = 11,658.77 × 4,912.30
  4. Step 4: Simplify right side
    8,447.05x = 57,271,329.86
  5. Step 5: Solve for x
    x = 57,271,329.86/8,447.05
  6. Step 6: Final answer
    x = 6,780.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.