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Finding the Fourth Proportional to 8,815.03, 13,201.58 and 4,860.20

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Solution

The fourth proportional to 8,815.03, 13,201.58 and 4,860.20 is: 7,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.03 : 13,201.58 = 4,860.20 : x
  2. Step 2: Convert to fraction form
    8,815.03/13,201.58 = 4,860.20/x
  3. Step 3: Cross multiply
    8,815.03x = 13,201.58 × 4,860.20
  4. Step 4: Simplify right side
    8,815.03x = 64,162,364.27
  5. Step 5: Solve for x
    x = 64,162,364.27/8,815.03
  6. Step 6: Final answer
    x = 7,278.75

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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.