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Finding the Fourth Proportional to 8,159.70, 11,262.21 and 4,974.04

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Solution

The fourth proportional to 8,159.70, 11,262.21 and 4,974.04 is: 6,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.70 : 11,262.21 = 4,974.04 : x
  2. Step 2: Convert to fraction form
    8,159.70/11,262.21 = 4,974.04/x
  3. Step 3: Cross multiply
    8,159.70x = 11,262.21 × 4,974.04
  4. Step 4: Simplify right side
    8,159.70x = 56,018,678.45
  5. Step 5: Solve for x
    x = 56,018,678.45/8,159.70
  6. Step 6: Final answer
    x = 6,865.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.