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Finding the Fourth Proportional to 8,807.57, 13,211.10 and 3,540.95

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Solution

The fourth proportional to 8,807.57, 13,211.10 and 3,540.95 is: 5,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.57 : 13,211.10 = 3,540.95 : x
  2. Step 2: Convert to fraction form
    8,807.57/13,211.10 = 3,540.95/x
  3. Step 3: Cross multiply
    8,807.57x = 13,211.10 × 3,540.95
  4. Step 4: Simplify right side
    8,807.57x = 46,779,828.03
  5. Step 5: Solve for x
    x = 46,779,828.03/8,807.57
  6. Step 6: Final answer
    x = 5,311.32

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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.