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Finding the Fourth Proportional to 8,750.34, 13,116.06 and 4,311.09

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Solution

The fourth proportional to 8,750.34, 13,116.06 and 4,311.09 is: 6,461.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.34 : 13,116.06 = 4,311.09 : x
  2. Step 2: Convert to fraction form
    8,750.34/13,116.06 = 4,311.09/x
  3. Step 3: Cross multiply
    8,750.34x = 13,116.06 × 4,311.09
  4. Step 4: Simplify right side
    8,750.34x = 56,544,515.11
  5. Step 5: Solve for x
    x = 56,544,515.11/8,750.34
  6. Step 6: Final answer
    x = 6,461.98

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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.