Home / 12,258.32-16,910.92-7,222.80

Finding the Fourth Proportional to 12,258.32, 16,910.92 and 7,222.80

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Solution

The fourth proportional to 12,258.32, 16,910.92 and 7,222.80 is: 9,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.32 : 16,910.92 = 7,222.80 : x
  2. Step 2: Convert to fraction form
    12,258.32/16,910.92 = 7,222.80/x
  3. Step 3: Cross multiply
    12,258.32x = 16,910.92 × 7,222.80
  4. Step 4: Simplify right side
    12,258.32x = 122,144,192.98
  5. Step 5: Solve for x
    x = 122,144,192.98/12,258.32
  6. Step 6: Final answer
    x = 9,964.19

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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.