Home / 12,071.80-16,659.52-6,766.68

Finding the Fourth Proportional to 12,071.80, 16,659.52 and 6,766.68

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Solution

The fourth proportional to 12,071.80, 16,659.52 and 6,766.68 is: 9,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.80 : 16,659.52 = 6,766.68 : x
  2. Step 2: Convert to fraction form
    12,071.80/16,659.52 = 6,766.68/x
  3. Step 3: Cross multiply
    12,071.80x = 16,659.52 × 6,766.68
  4. Step 4: Simplify right side
    12,071.80x = 112,729,640.79
  5. Step 5: Solve for x
    x = 112,729,640.79/12,071.80
  6. Step 6: Final answer
    x = 9,338.26

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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.