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Finding the Fourth Proportional to 8,349.58, 12,520.65 and 2,505.02

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Solution

The fourth proportional to 8,349.58, 12,520.65 and 2,505.02 is: 3,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.58 : 12,520.65 = 2,505.02 : x
  2. Step 2: Convert to fraction form
    8,349.58/12,520.65 = 2,505.02/x
  3. Step 3: Cross multiply
    8,349.58x = 12,520.65 × 2,505.02
  4. Step 4: Simplify right side
    8,349.58x = 31,364,478.66
  5. Step 5: Solve for x
    x = 31,364,478.66/8,349.58
  6. Step 6: Final answer
    x = 3,756.41

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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.