Home / 11,396.31-15,727.70-6,361.51

Finding the Fourth Proportional to 11,396.31, 15,727.70 and 6,361.51

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Solution

The fourth proportional to 11,396.31, 15,727.70 and 6,361.51 is: 8,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.31 : 15,727.70 = 6,361.51 : x
  2. Step 2: Convert to fraction form
    11,396.31/15,727.70 = 6,361.51/x
  3. Step 3: Cross multiply
    11,396.31x = 15,727.70 × 6,361.51
  4. Step 4: Simplify right side
    11,396.31x = 100,051,960.15
  5. Step 5: Solve for x
    x = 100,051,960.15/11,396.31
  6. Step 6: Final answer
    x = 8,779.33

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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.