Home / 12,378.82-18,571.88-4,585.81

Finding the Fourth Proportional to 12,378.82, 18,571.88 and 4,585.81

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Solution

The fourth proportional to 12,378.82, 18,571.88 and 4,585.81 is: 6,880.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.82 : 18,571.88 = 4,585.81 : x
  2. Step 2: Convert to fraction form
    12,378.82/18,571.88 = 4,585.81/x
  3. Step 3: Cross multiply
    12,378.82x = 18,571.88 × 4,585.81
  4. Step 4: Simplify right side
    12,378.82x = 85,167,113.02
  5. Step 5: Solve for x
    x = 85,167,113.02/12,378.82
  6. Step 6: Final answer
    x = 6,880.07

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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.