Home / 7,999.24-11,031.44-6,324.64

Finding the Fourth Proportional to 7,999.24, 11,031.44 and 6,324.64

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Solution

The fourth proportional to 7,999.24, 11,031.44 and 6,324.64 is: 8,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.24 : 11,031.44 = 6,324.64 : x
  2. Step 2: Convert to fraction form
    7,999.24/11,031.44 = 6,324.64/x
  3. Step 3: Cross multiply
    7,999.24x = 11,031.44 × 6,324.64
  4. Step 4: Simplify right side
    7,999.24x = 69,769,886.68
  5. Step 5: Solve for x
    x = 69,769,886.68/7,999.24
  6. Step 6: Final answer
    x = 8,722.06

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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.