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Finding the Fourth Proportional to 7,818.11, 10,788.00 and 6,228.79

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Solution

The fourth proportional to 7,818.11, 10,788.00 and 6,228.79 is: 8,594.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.11 : 10,788.00 = 6,228.79 : x
  2. Step 2: Convert to fraction form
    7,818.11/10,788.00 = 6,228.79/x
  3. Step 3: Cross multiply
    7,818.11x = 10,788.00 × 6,228.79
  4. Step 4: Simplify right side
    7,818.11x = 67,196,171.23
  5. Step 5: Solve for x
    x = 67,196,171.23/7,818.11
  6. Step 6: Final answer
    x = 8,594.94

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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.