Home / 12,141.81-16,755.53-6,764.22

Finding the Fourth Proportional to 12,141.81, 16,755.53 and 6,764.22

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Solution

The fourth proportional to 12,141.81, 16,755.53 and 6,764.22 is: 9,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.81 : 16,755.53 = 6,764.22 : x
  2. Step 2: Convert to fraction form
    12,141.81/16,755.53 = 6,764.22/x
  3. Step 3: Cross multiply
    12,141.81x = 16,755.53 × 6,764.22
  4. Step 4: Simplify right side
    12,141.81x = 113,338,057.32
  5. Step 5: Solve for x
    x = 113,338,057.32/12,141.81
  6. Step 6: Final answer
    x = 9,334.53

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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.