Home / 12,363.80-18,551.10-5,786.60

Finding the Fourth Proportional to 12,363.80, 18,551.10 and 5,786.60

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Solution

The fourth proportional to 12,363.80, 18,551.10 and 5,786.60 is: 8,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.80 : 18,551.10 = 5,786.60 : x
  2. Step 2: Convert to fraction form
    12,363.80/18,551.10 = 5,786.60/x
  3. Step 3: Cross multiply
    12,363.80x = 18,551.10 × 5,786.60
  4. Step 4: Simplify right side
    12,363.80x = 107,347,795.26
  5. Step 5: Solve for x
    x = 107,347,795.26/12,363.80
  6. Step 6: Final answer
    x = 8,682.43

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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.