Home / 11,455.40-17,177.68-4,438.70

Finding the Fourth Proportional to 11,455.40, 17,177.68 and 4,438.70

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Solution

The fourth proportional to 11,455.40, 17,177.68 and 4,438.70 is: 6,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.40 : 17,177.68 = 4,438.70 : x
  2. Step 2: Convert to fraction form
    11,455.40/17,177.68 = 4,438.70/x
  3. Step 3: Cross multiply
    11,455.40x = 17,177.68 × 4,438.70
  4. Step 4: Simplify right side
    11,455.40x = 76,246,568.22
  5. Step 5: Solve for x
    x = 76,246,568.22/11,455.40
  6. Step 6: Final answer
    x = 6,655.95

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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.