Home / 11,755.28-16,221.36-6,450.08

Finding the Fourth Proportional to 11,755.28, 16,221.36 and 6,450.08

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Solution

The fourth proportional to 11,755.28, 16,221.36 and 6,450.08 is: 8,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.28 : 16,221.36 = 6,450.08 : x
  2. Step 2: Convert to fraction form
    11,755.28/16,221.36 = 6,450.08/x
  3. Step 3: Cross multiply
    11,755.28x = 16,221.36 × 6,450.08
  4. Step 4: Simplify right side
    11,755.28x = 104,629,069.71
  5. Step 5: Solve for x
    x = 104,629,069.71/11,755.28
  6. Step 6: Final answer
    x = 8,900.60

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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.