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Finding the Fourth Proportional to 8,955.64, 13,419.78 and 3,758.68

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Solution

The fourth proportional to 8,955.64, 13,419.78 and 3,758.68 is: 5,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.64 : 13,419.78 = 3,758.68 : x
  2. Step 2: Convert to fraction form
    8,955.64/13,419.78 = 3,758.68/x
  3. Step 3: Cross multiply
    8,955.64x = 13,419.78 × 3,758.68
  4. Step 4: Simplify right side
    8,955.64x = 50,440,658.69
  5. Step 5: Solve for x
    x = 50,440,658.69/8,955.64
  6. Step 6: Final answer
    x = 5,632.28

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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.