Home / 8,505.40-12,766.18-5,224.90

Finding the Fourth Proportional to 8,505.40, 12,766.18 and 5,224.90

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Solution

The fourth proportional to 8,505.40, 12,766.18 and 5,224.90 is: 7,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.40 : 12,766.18 = 5,224.90 : x
  2. Step 2: Convert to fraction form
    8,505.40/12,766.18 = 5,224.90/x
  3. Step 3: Cross multiply
    8,505.40x = 12,766.18 × 5,224.90
  4. Step 4: Simplify right side
    8,505.40x = 66,702,013.88
  5. Step 5: Solve for x
    x = 66,702,013.88/8,505.40
  6. Step 6: Final answer
    x = 7,842.31

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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.