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Finding the Fourth Proportional to 8,814.71, 13,213.95 and 3,813.95

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Solution

The fourth proportional to 8,814.71, 13,213.95 and 3,813.95 is: 5,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.71 : 13,213.95 = 3,813.95 : x
  2. Step 2: Convert to fraction form
    8,814.71/13,213.95 = 3,813.95/x
  3. Step 3: Cross multiply
    8,814.71x = 13,213.95 × 3,813.95
  4. Step 4: Simplify right side
    8,814.71x = 50,397,278.53
  5. Step 5: Solve for x
    x = 50,397,278.53/8,814.71
  6. Step 6: Final answer
    x = 5,717.41

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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.