Home / 11,431.44-17,145.90-7,757.28

Finding the Fourth Proportional to 11,431.44, 17,145.90 and 7,757.28

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Solution

The fourth proportional to 11,431.44, 17,145.90 and 7,757.28 is: 11,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.44 : 17,145.90 = 7,757.28 : x
  2. Step 2: Convert to fraction form
    11,431.44/17,145.90 = 7,757.28/x
  3. Step 3: Cross multiply
    11,431.44x = 17,145.90 × 7,757.28
  4. Step 4: Simplify right side
    11,431.44x = 133,005,547.15
  5. Step 5: Solve for x
    x = 133,005,547.15/11,431.44
  6. Step 6: Final answer
    x = 11,635.06

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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.