Home / 8,537.16-12,811.50-2,990.54

Finding the Fourth Proportional to 8,537.16, 12,811.50 and 2,990.54

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Solution

The fourth proportional to 8,537.16, 12,811.50 and 2,990.54 is: 4,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.16 : 12,811.50 = 2,990.54 : x
  2. Step 2: Convert to fraction form
    8,537.16/12,811.50 = 2,990.54/x
  3. Step 3: Cross multiply
    8,537.16x = 12,811.50 × 2,990.54
  4. Step 4: Simplify right side
    8,537.16x = 38,313,303.21
  5. Step 5: Solve for x
    x = 38,313,303.21/8,537.16
  6. Step 6: Final answer
    x = 4,487.83

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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.