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Finding the Fourth Proportional to 8,968.66, 13,453.00 and 4,287.57

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Solution

The fourth proportional to 8,968.66, 13,453.00 and 4,287.57 is: 6,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.66 : 13,453.00 = 4,287.57 : x
  2. Step 2: Convert to fraction form
    8,968.66/13,453.00 = 4,287.57/x
  3. Step 3: Cross multiply
    8,968.66x = 13,453.00 × 4,287.57
  4. Step 4: Simplify right side
    8,968.66x = 57,680,618.04
  5. Step 5: Solve for x
    x = 57,680,618.04/8,968.66
  6. Step 6: Final answer
    x = 6,431.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.