Home / 8,380.21-12,575.61-4,684.87

Finding the Fourth Proportional to 8,380.21, 12,575.61 and 4,684.87

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Solution

The fourth proportional to 8,380.21, 12,575.61 and 4,684.87 is: 7,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.21 : 12,575.61 = 4,684.87 : x
  2. Step 2: Convert to fraction form
    8,380.21/12,575.61 = 4,684.87/x
  3. Step 3: Cross multiply
    8,380.21x = 12,575.61 × 4,684.87
  4. Step 4: Simplify right side
    8,380.21x = 58,915,035.14
  5. Step 5: Solve for x
    x = 58,915,035.14/8,380.21
  6. Step 6: Final answer
    x = 7,030.26

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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.