Home / 8,380.38-11,564.61-4,603.43

Finding the Fourth Proportional to 8,380.38, 11,564.61 and 4,603.43

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Solution

The fourth proportional to 8,380.38, 11,564.61 and 4,603.43 is: 6,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.38 : 11,564.61 = 4,603.43 : x
  2. Step 2: Convert to fraction form
    8,380.38/11,564.61 = 4,603.43/x
  3. Step 3: Cross multiply
    8,380.38x = 11,564.61 × 4,603.43
  4. Step 4: Simplify right side
    8,380.38x = 53,236,814.79
  5. Step 5: Solve for x
    x = 53,236,814.79/8,380.38
  6. Step 6: Final answer
    x = 6,352.55

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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.