Home / 12,108.20-16,711.06-6,803.48

Finding the Fourth Proportional to 12,108.20, 16,711.06 and 6,803.48

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Solution

The fourth proportional to 12,108.20, 16,711.06 and 6,803.48 is: 9,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.20 : 16,711.06 = 6,803.48 : x
  2. Step 2: Convert to fraction form
    12,108.20/16,711.06 = 6,803.48/x
  3. Step 3: Cross multiply
    12,108.20x = 16,711.06 × 6,803.48
  4. Step 4: Simplify right side
    12,108.20x = 113,693,362.49
  5. Step 5: Solve for x
    x = 113,693,362.49/12,108.20
  6. Step 6: Final answer
    x = 9,389.78

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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.