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Finding the Fourth Proportional to 8,488.98, 11,714.86 and 4,712.42

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Solution

The fourth proportional to 8,488.98, 11,714.86 and 4,712.42 is: 6,503.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.98 : 11,714.86 = 4,712.42 : x
  2. Step 2: Convert to fraction form
    8,488.98/11,714.86 = 4,712.42/x
  3. Step 3: Cross multiply
    8,488.98x = 11,714.86 × 4,712.42
  4. Step 4: Simplify right side
    8,488.98x = 55,205,283.43
  5. Step 5: Solve for x
    x = 55,205,283.43/8,488.98
  6. Step 6: Final answer
    x = 6,503.17

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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.