Home / 8,537.25-12,811.67-2,990.64

Finding the Fourth Proportional to 8,537.25, 12,811.67 and 2,990.64

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Solution

The fourth proportional to 8,537.25, 12,811.67 and 2,990.64 is: 4,487.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.25 : 12,811.67 = 2,990.64 : x
  2. Step 2: Convert to fraction form
    8,537.25/12,811.67 = 2,990.64/x
  3. Step 3: Cross multiply
    8,537.25x = 12,811.67 × 2,990.64
  4. Step 4: Simplify right side
    8,537.25x = 38,315,077.82
  5. Step 5: Solve for x
    x = 38,315,077.82/8,537.25
  6. Step 6: Final answer
    x = 4,487.99

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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.