Home / 8,336.80-12,501.96-3,139.84

Finding the Fourth Proportional to 8,336.80, 12,501.96 and 3,139.84

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Solution

The fourth proportional to 8,336.80, 12,501.96 and 3,139.84 is: 4,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.80 : 12,501.96 = 3,139.84 : x
  2. Step 2: Convert to fraction form
    8,336.80/12,501.96 = 3,139.84/x
  3. Step 3: Cross multiply
    8,336.80x = 12,501.96 × 3,139.84
  4. Step 4: Simplify right side
    8,336.80x = 39,254,154.09
  5. Step 5: Solve for x
    x = 39,254,154.09/8,336.80
  6. Step 6: Final answer
    x = 4,708.54

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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.