Home / 12,282.60-18,420.52-3,395.80

Finding the Fourth Proportional to 12,282.60, 18,420.52 and 3,395.80

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Solution

The fourth proportional to 12,282.60, 18,420.52 and 3,395.80 is: 5,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.60 : 18,420.52 = 3,395.80 : x
  2. Step 2: Convert to fraction form
    12,282.60/18,420.52 = 3,395.80/x
  3. Step 3: Cross multiply
    12,282.60x = 18,420.52 × 3,395.80
  4. Step 4: Simplify right side
    12,282.60x = 62,552,401.82
  5. Step 5: Solve for x
    x = 62,552,401.82/12,282.60
  6. Step 6: Final answer
    x = 5,092.77

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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.