Home / 11,729.63-16,186.89-6,424.64

Finding the Fourth Proportional to 11,729.63, 16,186.89 and 6,424.64

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Solution

The fourth proportional to 11,729.63, 16,186.89 and 6,424.64 is: 8,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.63 : 16,186.89 = 6,424.64 : x
  2. Step 2: Convert to fraction form
    11,729.63/16,186.89 = 6,424.64/x
  3. Step 3: Cross multiply
    11,729.63x = 16,186.89 × 6,424.64
  4. Step 4: Simplify right side
    11,729.63x = 103,994,860.04
  5. Step 5: Solve for x
    x = 103,994,860.04/11,729.63
  6. Step 6: Final answer
    x = 8,866.00

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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.