Home / 11,157.16-15,396.52-6,121.32

Finding the Fourth Proportional to 11,157.16, 15,396.52 and 6,121.32

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Solution

The fourth proportional to 11,157.16, 15,396.52 and 6,121.32 is: 8,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.16 : 15,396.52 = 6,121.32 : x
  2. Step 2: Convert to fraction form
    11,157.16/15,396.52 = 6,121.32/x
  3. Step 3: Cross multiply
    11,157.16x = 15,396.52 × 6,121.32
  4. Step 4: Simplify right side
    11,157.16x = 94,247,025.81
  5. Step 5: Solve for x
    x = 94,247,025.81/11,157.16
  6. Step 6: Final answer
    x = 8,447.22

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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.