Home / 8,208.75-12,315.86-2,662.28

Finding the Fourth Proportional to 8,208.75, 12,315.86 and 2,662.28

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Solution

The fourth proportional to 8,208.75, 12,315.86 and 2,662.28 is: 3,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.75 : 12,315.86 = 2,662.28 : x
  2. Step 2: Convert to fraction form
    8,208.75/12,315.86 = 2,662.28/x
  3. Step 3: Cross multiply
    8,208.75x = 12,315.86 × 2,662.28
  4. Step 4: Simplify right side
    8,208.75x = 32,788,267.76
  5. Step 5: Solve for x
    x = 32,788,267.76/8,208.75
  6. Step 6: Final answer
    x = 3,994.31

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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.