Home / 8,142.35-12,214.34-2,521.36

Finding the Fourth Proportional to 8,142.35, 12,214.34 and 2,521.36

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Solution

The fourth proportional to 8,142.35, 12,214.34 and 2,521.36 is: 3,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.35 : 12,214.34 = 2,521.36 : x
  2. Step 2: Convert to fraction form
    8,142.35/12,214.34 = 2,521.36/x
  3. Step 3: Cross multiply
    8,142.35x = 12,214.34 × 2,521.36
  4. Step 4: Simplify right side
    8,142.35x = 30,796,674.62
  5. Step 5: Solve for x
    x = 30,796,674.62/8,142.35
  6. Step 6: Final answer
    x = 3,782.28

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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.