Home / 11,429.60-15,771.12-6,712.97

Finding the Fourth Proportional to 11,429.60, 15,771.12 and 6,712.97

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Solution

The fourth proportional to 11,429.60, 15,771.12 and 6,712.97 is: 9,262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.60 : 15,771.12 = 6,712.97 : x
  2. Step 2: Convert to fraction form
    11,429.60/15,771.12 = 6,712.97/x
  3. Step 3: Cross multiply
    11,429.60x = 15,771.12 × 6,712.97
  4. Step 4: Simplify right side
    11,429.60x = 105,870,976.57
  5. Step 5: Solve for x
    x = 105,870,976.57/11,429.60
  6. Step 6: Final answer
    x = 9,262.88

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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.