Home / 12,395.21-18,595.55-3,630.20

Finding the Fourth Proportional to 12,395.21, 18,595.55 and 3,630.20

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Solution

The fourth proportional to 12,395.21, 18,595.55 and 3,630.20 is: 5,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.21 : 18,595.55 = 3,630.20 : x
  2. Step 2: Convert to fraction form
    12,395.21/18,595.55 = 3,630.20/x
  3. Step 3: Cross multiply
    12,395.21x = 18,595.55 × 3,630.20
  4. Step 4: Simplify right side
    12,395.21x = 67,505,454.48
  5. Step 5: Solve for x
    x = 67,505,454.48/12,395.21
  6. Step 6: Final answer
    x = 5,446.09

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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.