Home / 8,835.22-12,186.21-6,278.86

Finding the Fourth Proportional to 8,835.22, 12,186.21 and 6,278.86

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Solution

The fourth proportional to 8,835.22, 12,186.21 and 6,278.86 is: 8,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.22 : 12,186.21 = 6,278.86 : x
  2. Step 2: Convert to fraction form
    8,835.22/12,186.21 = 6,278.86/x
  3. Step 3: Cross multiply
    8,835.22x = 12,186.21 × 6,278.86
  4. Step 4: Simplify right side
    8,835.22x = 76,515,506.52
  5. Step 5: Solve for x
    x = 76,515,506.52/8,835.22
  6. Step 6: Final answer
    x = 8,660.28

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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.