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Finding the Fourth Proportional to 8,228.70, 11,356.98 and 6,473.70

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Solution

The fourth proportional to 8,228.70, 11,356.98 and 6,473.70 is: 8,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.70 : 11,356.98 = 6,473.70 : x
  2. Step 2: Convert to fraction form
    8,228.70/11,356.98 = 6,473.70/x
  3. Step 3: Cross multiply
    8,228.70x = 11,356.98 × 6,473.70
  4. Step 4: Simplify right side
    8,228.70x = 73,521,681.43
  5. Step 5: Solve for x
    x = 73,521,681.43/8,228.70
  6. Step 6: Final answer
    x = 8,934.79

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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.