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Finding the Fourth Proportional to 8,873.76, 13,306.40 and 3,028.80

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Solution

The fourth proportional to 8,873.76, 13,306.40 and 3,028.80 is: 4,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,873.76 : 13,306.40 = 3,028.80 : x
  2. Step 2: Convert to fraction form
    8,873.76/13,306.40 = 3,028.80/x
  3. Step 3: Cross multiply
    8,873.76x = 13,306.40 × 3,028.80
  4. Step 4: Simplify right side
    8,873.76x = 40,302,424.32
  5. Step 5: Solve for x
    x = 40,302,424.32/8,873.76
  6. Step 6: Final answer
    x = 4,541.75

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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.