Home / 8,432.88-12,646.62-3,989.94

Finding the Fourth Proportional to 8,432.88, 12,646.62 and 3,989.94

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Solution

The fourth proportional to 8,432.88, 12,646.62 and 3,989.94 is: 5,983.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.88 : 12,646.62 = 3,989.94 : x
  2. Step 2: Convert to fraction form
    8,432.88/12,646.62 = 3,989.94/x
  3. Step 3: Cross multiply
    8,432.88x = 12,646.62 × 3,989.94
  4. Step 4: Simplify right side
    8,432.88x = 50,459,255.00
  5. Step 5: Solve for x
    x = 50,459,255.00/8,432.88
  6. Step 6: Final answer
    x = 5,983.63

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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.