Home / 12,079.28-18,185.80-9,460.82

Finding the Fourth Proportional to 12,079.28, 18,185.80 and 9,460.82

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Solution

The fourth proportional to 12,079.28, 18,185.80 and 9,460.82 is: 14,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.28 : 18,185.80 = 9,460.82 : x
  2. Step 2: Convert to fraction form
    12,079.28/18,185.80 = 9,460.82/x
  3. Step 3: Cross multiply
    12,079.28x = 18,185.80 × 9,460.82
  4. Step 4: Simplify right side
    12,079.28x = 172,052,580.36
  5. Step 5: Solve for x
    x = 172,052,580.36/12,079.28
  6. Step 6: Final answer
    x = 14,243.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.