Home / 8,456.99-12,686.09-2,612.84

Finding the Fourth Proportional to 8,456.99, 12,686.09 and 2,612.84

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Solution

The fourth proportional to 8,456.99, 12,686.09 and 2,612.84 is: 3,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.99 : 12,686.09 = 2,612.84 : x
  2. Step 2: Convert to fraction form
    8,456.99/12,686.09 = 2,612.84/x
  3. Step 3: Cross multiply
    8,456.99x = 12,686.09 × 2,612.84
  4. Step 4: Simplify right side
    8,456.99x = 33,146,646.90
  5. Step 5: Solve for x
    x = 33,146,646.90/8,456.99
  6. Step 6: Final answer
    x = 3,919.44

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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.