Home / 8,086.37-12,129.51-6,603.96

Finding the Fourth Proportional to 8,086.37, 12,129.51 and 6,603.96

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Solution

The fourth proportional to 8,086.37, 12,129.51 and 6,603.96 is: 9,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.37 : 12,129.51 = 6,603.96 : x
  2. Step 2: Convert to fraction form
    8,086.37/12,129.51 = 6,603.96/x
  3. Step 3: Cross multiply
    8,086.37x = 12,129.51 × 6,603.96
  4. Step 4: Simplify right side
    8,086.37x = 80,102,869.11
  5. Step 5: Solve for x
    x = 80,102,869.11/8,086.37
  6. Step 6: Final answer
    x = 9,905.92

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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.