Home / 12,227.30-16,872.36-6,921.06

Finding the Fourth Proportional to 12,227.30, 16,872.36 and 6,921.06

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Solution

The fourth proportional to 12,227.30, 16,872.36 and 6,921.06 is: 9,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.30 : 16,872.36 = 6,921.06 : x
  2. Step 2: Convert to fraction form
    12,227.30/16,872.36 = 6,921.06/x
  3. Step 3: Cross multiply
    12,227.30x = 16,872.36 × 6,921.06
  4. Step 4: Simplify right side
    12,227.30x = 116,774,615.90
  5. Step 5: Solve for x
    x = 116,774,615.90/12,227.30
  6. Step 6: Final answer
    x = 9,550.32

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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.