Home / 12,623.44-17,420.32-6,957.76

Finding the Fourth Proportional to 12,623.44, 17,420.32 and 6,957.76

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Solution

The fourth proportional to 12,623.44, 17,420.32 and 6,957.76 is: 9,601.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.44 : 17,420.32 = 6,957.76 : x
  2. Step 2: Convert to fraction form
    12,623.44/17,420.32 = 6,957.76/x
  3. Step 3: Cross multiply
    12,623.44x = 17,420.32 × 6,957.76
  4. Step 4: Simplify right side
    12,623.44x = 121,206,405.68
  5. Step 5: Solve for x
    x = 121,206,405.68/12,623.44
  6. Step 6: Final answer
    x = 9,601.69

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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.