Home / 8,416.05-11,614.12-4,639.11

Finding the Fourth Proportional to 8,416.05, 11,614.12 and 4,639.11

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Solution

The fourth proportional to 8,416.05, 11,614.12 and 4,639.11 is: 6,401.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.05 : 11,614.12 = 4,639.11 : x
  2. Step 2: Convert to fraction form
    8,416.05/11,614.12 = 4,639.11/x
  3. Step 3: Cross multiply
    8,416.05x = 11,614.12 × 4,639.11
  4. Step 4: Simplify right side
    8,416.05x = 53,879,168.64
  5. Step 5: Solve for x
    x = 53,879,168.64/8,416.05
  6. Step 6: Final answer
    x = 6,401.95

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1.5x scale

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.