Home / 8,380.61-11,564.92-4,654.85

Finding the Fourth Proportional to 8,380.61, 11,564.92 and 4,654.85

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Solution

The fourth proportional to 8,380.61, 11,564.92 and 4,654.85 is: 6,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.61 : 11,564.92 = 4,654.85 : x
  2. Step 2: Convert to fraction form
    8,380.61/11,564.92 = 4,654.85/x
  3. Step 3: Cross multiply
    8,380.61x = 11,564.92 × 4,654.85
  4. Step 4: Simplify right side
    8,380.61x = 53,832,967.86
  5. Step 5: Solve for x
    x = 53,832,967.86/8,380.61
  6. Step 6: Final answer
    x = 6,423.51

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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.