Home / 8,630.18-12,933.32-3,938.74

Finding the Fourth Proportional to 8,630.18, 12,933.32 and 3,938.74

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Solution

The fourth proportional to 8,630.18, 12,933.32 and 3,938.74 is: 5,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.18 : 12,933.32 = 3,938.74 : x
  2. Step 2: Convert to fraction form
    8,630.18/12,933.32 = 3,938.74/x
  3. Step 3: Cross multiply
    8,630.18x = 12,933.32 × 3,938.74
  4. Step 4: Simplify right side
    8,630.18x = 50,940,984.82
  5. Step 5: Solve for x
    x = 50,940,984.82/8,630.18
  6. Step 6: Final answer
    x = 5,902.66

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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.