Home / 12,305.39-16,976.10-7,525.54

Finding the Fourth Proportional to 12,305.39, 16,976.10 and 7,525.54

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Solution

The fourth proportional to 12,305.39, 16,976.10 and 7,525.54 is: 10,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.39 : 16,976.10 = 7,525.54 : x
  2. Step 2: Convert to fraction form
    12,305.39/16,976.10 = 7,525.54/x
  3. Step 3: Cross multiply
    12,305.39x = 16,976.10 × 7,525.54
  4. Step 4: Simplify right side
    12,305.39x = 127,754,326.70
  5. Step 5: Solve for x
    x = 127,754,326.70/12,305.39
  6. Step 6: Final answer
    x = 10,381.99

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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.