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Finding the Fourth Proportional to 8,969.68, 13,446.32 and 3,775.92

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Solution

The fourth proportional to 8,969.68, 13,446.32 and 3,775.92 is: 5,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.68 : 13,446.32 = 3,775.92 : x
  2. Step 2: Convert to fraction form
    8,969.68/13,446.32 = 3,775.92/x
  3. Step 3: Cross multiply
    8,969.68x = 13,446.32 × 3,775.92
  4. Step 4: Simplify right side
    8,969.68x = 50,772,228.61
  5. Step 5: Solve for x
    x = 50,772,228.61/8,969.68
  6. Step 6: Final answer
    x = 5,660.43

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1.5x scale

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.