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Finding the Fourth Proportional to 8,975.55, 12,386.09 and 4,996.74

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Solution

The fourth proportional to 8,975.55, 12,386.09 and 4,996.74 is: 6,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.55 : 12,386.09 = 4,996.74 : x
  2. Step 2: Convert to fraction form
    8,975.55/12,386.09 = 4,996.74/x
  3. Step 3: Cross multiply
    8,975.55x = 12,386.09 × 4,996.74
  4. Step 4: Simplify right side
    8,975.55x = 61,890,046.36
  5. Step 5: Solve for x
    x = 61,890,046.36/8,975.55
  6. Step 6: Final answer
    x = 6,895.40

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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.