Home / 8,209.88-12,316.03-3,015.35

Finding the Fourth Proportional to 8,209.88, 12,316.03 and 3,015.35

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Solution

The fourth proportional to 8,209.88, 12,316.03 and 3,015.35 is: 4,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.88 : 12,316.03 = 3,015.35 : x
  2. Step 2: Convert to fraction form
    8,209.88/12,316.03 = 3,015.35/x
  3. Step 3: Cross multiply
    8,209.88x = 12,316.03 × 3,015.35
  4. Step 4: Simplify right side
    8,209.88x = 37,137,141.06
  5. Step 5: Solve for x
    x = 37,137,141.06/8,209.88
  6. Step 6: Final answer
    x = 4,523.47

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1.5x scale

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.