Home / 11,412.83-15,749.16-6,376.97

Finding the Fourth Proportional to 11,412.83, 15,749.16 and 6,376.97

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Solution

The fourth proportional to 11,412.83, 15,749.16 and 6,376.97 is: 8,799.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.83 : 15,749.16 = 6,376.97 : x
  2. Step 2: Convert to fraction form
    11,412.83/15,749.16 = 6,376.97/x
  3. Step 3: Cross multiply
    11,412.83x = 15,749.16 × 6,376.97
  4. Step 4: Simplify right side
    11,412.83x = 100,431,920.85
  5. Step 5: Solve for x
    x = 100,431,920.85/11,412.83
  6. Step 6: Final answer
    x = 8,799.91

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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.