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Finding the Fourth Proportional to 6,818.63, 10,212.95 and 5,635.22

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Solution

The fourth proportional to 6,818.63, 10,212.95 and 5,635.22 is: 8,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.63 : 10,212.95 = 5,635.22 : x
  2. Step 2: Convert to fraction form
    6,818.63/10,212.95 = 5,635.22/x
  3. Step 3: Cross multiply
    6,818.63x = 10,212.95 × 5,635.22
  4. Step 4: Simplify right side
    6,818.63x = 57,552,140.86
  5. Step 5: Solve for x
    x = 57,552,140.86/6,818.63
  6. Step 6: Final answer
    x = 8,440.43

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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.