Home / 8,380.70-11,565.45-4,603.90

Finding the Fourth Proportional to 8,380.70, 11,565.45 and 4,603.90

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Solution

The fourth proportional to 8,380.70, 11,565.45 and 4,603.90 is: 6,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.70 : 11,565.45 = 4,603.90 : x
  2. Step 2: Convert to fraction form
    8,380.70/11,565.45 = 4,603.90/x
  3. Step 3: Cross multiply
    8,380.70x = 11,565.45 × 4,603.90
  4. Step 4: Simplify right side
    8,380.70x = 53,246,175.26
  5. Step 5: Solve for x
    x = 53,246,175.26/8,380.70
  6. Step 6: Final answer
    x = 6,353.43

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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.