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Finding the Fourth Proportional to 8,953.28, 13,427.84 and 3,407.28

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Solution

The fourth proportional to 8,953.28, 13,427.84 and 3,407.28 is: 5,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.28 : 13,427.84 = 3,407.28 : x
  2. Step 2: Convert to fraction form
    8,953.28/13,427.84 = 3,407.28/x
  3. Step 3: Cross multiply
    8,953.28x = 13,427.84 × 3,407.28
  4. Step 4: Simplify right side
    8,953.28x = 45,752,410.68
  5. Step 5: Solve for x
    x = 45,752,410.68/8,953.28
  6. Step 6: Final answer
    x = 5,110.13

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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.