Home / 11,407.76-15,742.24-6,371.92

Finding the Fourth Proportional to 11,407.76, 15,742.24 and 6,371.92

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Solution

The fourth proportional to 11,407.76, 15,742.24 and 6,371.92 is: 8,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.76 : 15,742.24 = 6,371.92 : x
  2. Step 2: Convert to fraction form
    11,407.76/15,742.24 = 6,371.92/x
  3. Step 3: Cross multiply
    11,407.76x = 15,742.24 × 6,371.92
  4. Step 4: Simplify right side
    11,407.76x = 100,308,293.90
  5. Step 5: Solve for x
    x = 100,308,293.90/11,407.76
  6. Step 6: Final answer
    x = 8,792.99

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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.