Home / 12,108.20-16,707.20-6,803.24

Finding the Fourth Proportional to 12,108.20, 16,707.20 and 6,803.24

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Solution

The fourth proportional to 12,108.20, 16,707.20 and 6,803.24 is: 9,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.20 : 16,707.20 = 6,803.24 : x
  2. Step 2: Convert to fraction form
    12,108.20/16,707.20 = 6,803.24/x
  3. Step 3: Cross multiply
    12,108.20x = 16,707.20 × 6,803.24
  4. Step 4: Simplify right side
    12,108.20x = 113,663,091.33
  5. Step 5: Solve for x
    x = 113,663,091.33/12,108.20
  6. Step 6: Final answer
    x = 9,387.28

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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.