Home / 8,619.50-12,931.77-3,073.29

Finding the Fourth Proportional to 8,619.50, 12,931.77 and 3,073.29

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Solution

The fourth proportional to 8,619.50, 12,931.77 and 3,073.29 is: 4,610.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.50 : 12,931.77 = 3,073.29 : x
  2. Step 2: Convert to fraction form
    8,619.50/12,931.77 = 3,073.29/x
  3. Step 3: Cross multiply
    8,619.50x = 12,931.77 × 3,073.29
  4. Step 4: Simplify right side
    8,619.50x = 39,743,104.07
  5. Step 5: Solve for x
    x = 39,743,104.07/8,619.50
  6. Step 6: Final answer
    x = 4,610.84

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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.