Home / 11,412.90-17,118.99-6,764.76

Finding the Fourth Proportional to 11,412.90, 17,118.99 and 6,764.76

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Solution

The fourth proportional to 11,412.90, 17,118.99 and 6,764.76 is: 10,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.90 : 17,118.99 = 6,764.76 : x
  2. Step 2: Convert to fraction form
    11,412.90/17,118.99 = 6,764.76/x
  3. Step 3: Cross multiply
    11,412.90x = 17,118.99 × 6,764.76
  4. Step 4: Simplify right side
    11,412.90x = 115,805,858.79
  5. Step 5: Solve for x
    x = 115,805,858.79/11,412.90
  6. Step 6: Final answer
    x = 10,146.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.