Home / 8,182.14-12,285.51-4,909.87

Finding the Fourth Proportional to 8,182.14, 12,285.51 and 4,909.87

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Solution

The fourth proportional to 8,182.14, 12,285.51 and 4,909.87 is: 7,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.14 : 12,285.51 = 4,909.87 : x
  2. Step 2: Convert to fraction form
    8,182.14/12,285.51 = 4,909.87/x
  3. Step 3: Cross multiply
    8,182.14x = 12,285.51 × 4,909.87
  4. Step 4: Simplify right side
    8,182.14x = 60,320,256.98
  5. Step 5: Solve for x
    x = 60,320,256.98/8,182.14
  6. Step 6: Final answer
    x = 7,372.19

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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.