Home / 12,607.53-18,906.30-4,285.86

Finding the Fourth Proportional to 12,607.53, 18,906.30 and 4,285.86

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Solution

The fourth proportional to 12,607.53, 18,906.30 and 4,285.86 is: 6,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.53 : 18,906.30 = 4,285.86 : x
  2. Step 2: Convert to fraction form
    12,607.53/18,906.30 = 4,285.86/x
  3. Step 3: Cross multiply
    12,607.53x = 18,906.30 × 4,285.86
  4. Step 4: Simplify right side
    12,607.53x = 81,029,754.92
  5. Step 5: Solve for x
    x = 81,029,754.92/12,607.53
  6. Step 6: Final answer
    x = 6,427.09

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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.