Home / 12,108.57-16,709.76-6,803.37

Finding the Fourth Proportional to 12,108.57, 16,709.76 and 6,803.37

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Solution

The fourth proportional to 12,108.57, 16,709.76 and 6,803.37 is: 9,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.57 : 16,709.76 = 6,803.37 : x
  2. Step 2: Convert to fraction form
    12,108.57/16,709.76 = 6,803.37/x
  3. Step 3: Cross multiply
    12,108.57x = 16,709.76 × 6,803.37
  4. Step 4: Simplify right side
    12,108.57x = 113,682,679.89
  5. Step 5: Solve for x
    x = 113,682,679.89/12,108.57
  6. Step 6: Final answer
    x = 9,388.62

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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.