Home / 11,729.32-16,186.51-6,424.09

Finding the Fourth Proportional to 11,729.32, 16,186.51 and 6,424.09

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Solution

The fourth proportional to 11,729.32, 16,186.51 and 6,424.09 is: 8,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.32 : 16,186.51 = 6,424.09 : x
  2. Step 2: Convert to fraction form
    11,729.32/16,186.51 = 6,424.09/x
  3. Step 3: Cross multiply
    11,729.32x = 16,186.51 × 6,424.09
  4. Step 4: Simplify right side
    11,729.32x = 103,983,597.03
  5. Step 5: Solve for x
    x = 103,983,597.03/11,729.32
  6. Step 6: Final answer
    x = 8,865.27

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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.