Home / 12,071.07-18,105.80-3,305.25

Finding the Fourth Proportional to 12,071.07, 18,105.80 and 3,305.25

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Solution

The fourth proportional to 12,071.07, 18,105.80 and 3,305.25 is: 4,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.07 : 18,105.80 = 3,305.25 : x
  2. Step 2: Convert to fraction form
    12,071.07/18,105.80 = 3,305.25/x
  3. Step 3: Cross multiply
    12,071.07x = 18,105.80 × 3,305.25
  4. Step 4: Simplify right side
    12,071.07x = 59,844,178.92
  5. Step 5: Solve for x
    x = 59,844,178.92/12,071.07
  6. Step 6: Final answer
    x = 4,957.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.