Home / 12,395.85-18,591.66-3,628.68

Finding the Fourth Proportional to 12,395.85, 18,591.66 and 3,628.68

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Solution

The fourth proportional to 12,395.85, 18,591.66 and 3,628.68 is: 5,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.85 : 18,591.66 = 3,628.68 : x
  2. Step 2: Convert to fraction form
    12,395.85/18,591.66 = 3,628.68/x
  3. Step 3: Cross multiply
    12,395.85x = 18,591.66 × 3,628.68
  4. Step 4: Simplify right side
    12,395.85x = 67,463,184.81
  5. Step 5: Solve for x
    x = 67,463,184.81/12,395.85
  6. Step 6: Final answer
    x = 5,442.40

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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.