Home / 11,424.43-15,767.18-6,388.93

Finding the Fourth Proportional to 11,424.43, 15,767.18 and 6,388.93

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Solution

The fourth proportional to 11,424.43, 15,767.18 and 6,388.93 is: 8,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.43 : 15,767.18 = 6,388.93 : x
  2. Step 2: Convert to fraction form
    11,424.43/15,767.18 = 6,388.93/x
  3. Step 3: Cross multiply
    11,424.43x = 15,767.18 × 6,388.93
  4. Step 4: Simplify right side
    11,424.43x = 100,735,409.32
  5. Step 5: Solve for x
    x = 100,735,409.32/11,424.43
  6. Step 6: Final answer
    x = 8,817.54

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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.